<article>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#article10_02_04_1328218</id>
	<title>ESA Conducts Mars Terraforming Experiments On ISS</title>
	<author>samzenpus</author>
	<datestamp>1265301840000</datestamp>
	<htmltext>geegel writes <i>"Space is a hostile environment for living things, but small organisms on the Expose-E experiment unit outside Europe's Columbus ISS laboratory module have <a href="http://www.esa.int/esaCP/SEM72XRJR4G\_index\_0.html">resisted the solar UV radiation, cosmic rays, vacuum and varying temperatures for 18 months</a>. A certain lichen seems to be particularly happy in open space."</i></htmltext>
<tokenext>geegel writes " Space is a hostile environment for living things , but small organisms on the Expose-E experiment unit outside Europe 's Columbus ISS laboratory module have resisted the solar UV radiation , cosmic rays , vacuum and varying temperatures for 18 months .
A certain lichen seems to be particularly happy in open space .
"</tokentext>
<sentencetext>geegel writes "Space is a hostile environment for living things, but small organisms on the Expose-E experiment unit outside Europe's Columbus ISS laboratory module have resisted the solar UV radiation, cosmic rays, vacuum and varying temperatures for 18 months.
A certain lichen seems to be particularly happy in open space.
"</sentencetext>
</article>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31024092</id>
	<title>Re:It's not open source...</title>
	<author>Anonymous</author>
	<datestamp>1265307600000</datestamp>
	<modclass>None</modclass>
	<modscore>0</modscore>
	<htmltext><p>I read your comment title as "It's not open source", AND I was outraged by it.<br>I think I better stop reading slashdot this month.</p></htmltext>
<tokenext>I read your comment title as " It 's not open source " , AND I was outraged by it.I think I better stop reading slashdot this month .</tokentext>
<sentencetext>I read your comment title as "It's not open source", AND I was outraged by it.I think I better stop reading slashdot this month.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31023828</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31035558</id>
	<title>Re:Let us get this out of the way...</title>
	<author>Ol Olsoc</author>
	<datestamp>1265391120000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext>I've taken a lichen to them already.</htmltext>
<tokenext>I 've taken a lichen to them already .</tokentext>
<sentencetext>I've taken a lichen to them already.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31023710</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31027222</id>
	<title>Re:Mars</title>
	<author>DarthVain</author>
	<datestamp>1265278920000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext><p>LOL</p><p>OK, do everything you have ever done, but over there...</p></htmltext>
<tokenext>LOLOK , do everything you have ever done , but over there.. .</tokentext>
<sentencetext>LOLOK, do everything you have ever done, but over there...</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31024362</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31024838</id>
	<title>Re:Venus</title>
	<author>Taibhsear</author>
	<datestamp>1265310900000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext><p>Methinks the sulfuric acid rain and immense pressure at the surface might disagree with you there...</p><p><div class="quote"><p>Due to the extremely hostile conditions on the surface, current technology disallows any possibility of colonizing the surface of Venus soon. However, there have been recent speculations about the possibility of developing extensive "floating cities" in the atmosphere of Venus in the future.[125]  This concept is based on the atmospheric conditions approximately fifty kilometres above the surface of the planet, where atmospheric pressures and temperatures are thought to be similar to those of Earth. Proposals suggest that manned exploration can be conducted from aerostat  vehicles, followed in the longer term by permanent settlements.[125]  The existence of dangerous quantities of volatile acids at these heights, however, precludes any short term settlements.</p></div><p> -wikipedia</p><p>Not to mention plants tend to not want to uptake CO2 anymore above certain concentrations (concentrations much less than 97\%). Look into a protein called RuBisCO. Mars has a better potential for being colonized using current technology.</p></div>
	</htmltext>
<tokenext>Methinks the sulfuric acid rain and immense pressure at the surface might disagree with you there...Due to the extremely hostile conditions on the surface , current technology disallows any possibility of colonizing the surface of Venus soon .
However , there have been recent speculations about the possibility of developing extensive " floating cities " in the atmosphere of Venus in the future .
[ 125 ] This concept is based on the atmospheric conditions approximately fifty kilometres above the surface of the planet , where atmospheric pressures and temperatures are thought to be similar to those of Earth .
Proposals suggest that manned exploration can be conducted from aerostat vehicles , followed in the longer term by permanent settlements .
[ 125 ] The existence of dangerous quantities of volatile acids at these heights , however , precludes any short term settlements .
-wikipediaNot to mention plants tend to not want to uptake CO2 anymore above certain concentrations ( concentrations much less than 97 \ % ) .
Look into a protein called RuBisCO .
Mars has a better potential for being colonized using current technology .</tokentext>
<sentencetext>Methinks the sulfuric acid rain and immense pressure at the surface might disagree with you there...Due to the extremely hostile conditions on the surface, current technology disallows any possibility of colonizing the surface of Venus soon.
However, there have been recent speculations about the possibility of developing extensive "floating cities" in the atmosphere of Venus in the future.
[125]  This concept is based on the atmospheric conditions approximately fifty kilometres above the surface of the planet, where atmospheric pressures and temperatures are thought to be similar to those of Earth.
Proposals suggest that manned exploration can be conducted from aerostat  vehicles, followed in the longer term by permanent settlements.
[125]  The existence of dangerous quantities of volatile acids at these heights, however, precludes any short term settlements.
-wikipediaNot to mention plants tend to not want to uptake CO2 anymore above certain concentrations (concentrations much less than 97\%).
Look into a protein called RuBisCO.
Mars has a better potential for being colonized using current technology.
	</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31023986</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31024888</id>
	<title>Possible terraforming Mars experiment</title>
	<author>mrflash818</author>
	<datestamp>1265311080000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext><p>If I remember correctly, the Deep Space One experiment was considered successful.</p><p>I wonder if it is at all feasible to use another one to land on a high water contect comet or comet-like asteroid, and have it steer the item such that it impacts Mars.</p><p>If that was able to provide enough water, next would be the lichen?</p><p>I cannot think of any practical short-term value, except to know we can do it.</p></htmltext>
<tokenext>If I remember correctly , the Deep Space One experiment was considered successful.I wonder if it is at all feasible to use another one to land on a high water contect comet or comet-like asteroid , and have it steer the item such that it impacts Mars.If that was able to provide enough water , next would be the lichen ? I can not think of any practical short-term value , except to know we can do it .</tokentext>
<sentencetext>If I remember correctly, the Deep Space One experiment was considered successful.I wonder if it is at all feasible to use another one to land on a high water contect comet or comet-like asteroid, and have it steer the item such that it impacts Mars.If that was able to provide enough water, next would be the lichen?I cannot think of any practical short-term value, except to know we can do it.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31023770</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31024402</id>
	<title>Surviving exposure is different than living</title>
	<author>holmstar</author>
	<datestamp>1265308860000</datestamp>
	<modclass>Insightful</modclass>
	<modscore>2</modscore>
	<htmltext>This experiment just shows that the lichen was able to survive long term exposure to space.  It doesn't say anything about growth, which is what you would need in order to do any sort of terraforming.  It would be nice if they would give a bit more detail on the findings.</htmltext>
<tokenext>This experiment just shows that the lichen was able to survive long term exposure to space .
It does n't say anything about growth , which is what you would need in order to do any sort of terraforming .
It would be nice if they would give a bit more detail on the findings .</tokentext>
<sentencetext>This experiment just shows that the lichen was able to survive long term exposure to space.
It doesn't say anything about growth, which is what you would need in order to do any sort of terraforming.
It would be nice if they would give a bit more detail on the findings.</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31033238</id>
	<title>Is this terraforming?</title>
	<author>physburn</author>
	<datestamp>1265374800000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext>  Perphaps a better description would be mars' forming earth
life forms. Now that we have bacteria which have a good
chance of surviving on parts of Mars, (not the parts of the
surface is highly oxidating soil, which would act like
bleach), that doesn't mean it would terraform Mars. We would
need to do a lot of simulations to find out what the effect
actually would be. Mars starts with such a low gravity
that it might not hold oxygen in its atmosphere for very
low. Adding a lot of C02 would help. Perphaps giant mirrors
aimed at the Poles of Mars, are the way to start.
<p>
<a href="http://www.feeddistiller.com/blogs/Space\%20Colonization/feed.html" title="feeddistiller.com">SpaceColonization Feed @ </a> [feeddistiller.com]<a href="http://www.feeddistiller.com/" title="feeddistiller.com">Feed Distiller</a> [feeddistiller.com]</p></htmltext>
<tokenext>Perphaps a better description would be mars ' forming earth life forms .
Now that we have bacteria which have a good chance of surviving on parts of Mars , ( not the parts of the surface is highly oxidating soil , which would act like bleach ) , that does n't mean it would terraform Mars .
We would need to do a lot of simulations to find out what the effect actually would be .
Mars starts with such a low gravity that it might not hold oxygen in its atmosphere for very low .
Adding a lot of C02 would help .
Perphaps giant mirrors aimed at the Poles of Mars , are the way to start .
SpaceColonization Feed @ [ feeddistiller.com ] Feed Distiller [ feeddistiller.com ]</tokentext>
<sentencetext>  Perphaps a better description would be mars' forming earth
life forms.
Now that we have bacteria which have a good
chance of surviving on parts of Mars, (not the parts of the
surface is highly oxidating soil, which would act like
bleach), that doesn't mean it would terraform Mars.
We would
need to do a lot of simulations to find out what the effect
actually would be.
Mars starts with such a low gravity
that it might not hold oxygen in its atmosphere for very
low.
Adding a lot of C02 would help.
Perphaps giant mirrors
aimed at the Poles of Mars, are the way to start.
SpaceColonization Feed @  [feeddistiller.com]Feed Distiller [feeddistiller.com]</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31024082</id>
	<title>Re:Mars</title>
	<author>mweather</author>
	<datestamp>1265307540000</datestamp>
	<modclass>Flamebait</modclass>
	<modscore>0</modscore>
	<htmltext><p><div class="quote"><p>At this point we don't even have an idea when humans will finally get there.</p> </div><p>We had a pretty good idea until a few days ago.</p></div>
	</htmltext>
<tokenext>At this point we do n't even have an idea when humans will finally get there .
We had a pretty good idea until a few days ago .</tokentext>
<sentencetext>At this point we don't even have an idea when humans will finally get there.
We had a pretty good idea until a few days ago.
	</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31023770</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31031486</id>
	<title>Re:Mars</title>
	<author>Ihmhi</author>
	<datestamp>1265308020000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext><p>Well, let's say we figure out what properties of these lichen allow them to survive. Couldn't we eventually genetically engineer things like plants to grow on Mars?</p><p>It is an interesting scientific problem. How do you create an atmosphere? It's not like we can just take big ships full of oxygen, open 'em up on Mars, and hope for the best.</p></htmltext>
<tokenext>Well , let 's say we figure out what properties of these lichen allow them to survive .
Could n't we eventually genetically engineer things like plants to grow on Mars ? It is an interesting scientific problem .
How do you create an atmosphere ?
It 's not like we can just take big ships full of oxygen , open 'em up on Mars , and hope for the best .</tokentext>
<sentencetext>Well, let's say we figure out what properties of these lichen allow them to survive.
Couldn't we eventually genetically engineer things like plants to grow on Mars?It is an interesting scientific problem.
How do you create an atmosphere?
It's not like we can just take big ships full of oxygen, open 'em up on Mars, and hope for the best.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31023770</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31027036</id>
	<title>No Magnetosphere, No Terraforming!</title>
	<author>Anonymous</author>
	<datestamp>1265278200000</datestamp>
	<modclass>None</modclass>
	<modscore>0</modscore>
	<htmltext><p>I don't understand why this nonsense of terraforming Mars keeps getting rehashed.  Mars does not have the magnetosphere required to prevent solar winds from ripping any significant atmosphere off the planet.  I'm pretty sure that humans won't have any method of creating a planetary scale magnetosphere ever.</p></htmltext>
<tokenext>I do n't understand why this nonsense of terraforming Mars keeps getting rehashed .
Mars does not have the magnetosphere required to prevent solar winds from ripping any significant atmosphere off the planet .
I 'm pretty sure that humans wo n't have any method of creating a planetary scale magnetosphere ever .</tokentext>
<sentencetext>I don't understand why this nonsense of terraforming Mars keeps getting rehashed.
Mars does not have the magnetosphere required to prevent solar winds from ripping any significant atmosphere off the planet.
I'm pretty sure that humans won't have any method of creating a planetary scale magnetosphere ever.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31023770</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31027502</id>
	<title>Re:Mars</title>
	<author>X0563511</author>
	<datestamp>1265280480000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext><p>The hard part is keeping the oxygen there. Between the lack of a respectable magnetic field and lower gravity, most of the atmosphere will just spin off and/or get blown away by solar radiation.</p></htmltext>
<tokenext>The hard part is keeping the oxygen there .
Between the lack of a respectable magnetic field and lower gravity , most of the atmosphere will just spin off and/or get blown away by solar radiation .</tokentext>
<sentencetext>The hard part is keeping the oxygen there.
Between the lack of a respectable magnetic field and lower gravity, most of the atmosphere will just spin off and/or get blown away by solar radiation.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31024766</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31025086</id>
	<title>modL down</title>
	<author>Anonymous</author>
	<datestamp>1265311980000</datestamp>
	<modclass>Offtopic</modclass>
	<modscore>-1</modscore>
	<htmltext>Fly...don'7 fear</htmltext>
<tokenext>Fly...don'7 fear</tokentext>
<sentencetext>Fly...don'7 fear</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31025182</id>
	<title>Re:Mars</title>
	<author>inviolet</author>
	<datestamp>1265312400000</datestamp>
	<modclass>Interestin</modclass>
	<modscore>4</modscore>
	<htmltext><blockquote><div><p>Obviously there are a multitude of inhibitors to such growth but, if we can confirm there is no existing life on Mars there is nothing preventing us from launching a giant rocket to Mars fill with a good cocktail of microbes, algeas, etc and seed bombing the piss outta the planet and letting natural selection establish an ecosystem. I argue the opposite. Make the planet into a giant industrial factory where raw pollutants are just dumped out the window. Anything capable of living in that environment would have to thrive on said wastes.</p></div></blockquote><p>Why convert Mars into a meat-friendly environment?  We already have one of those, and given similar engineering effort, we could turn Venus back into a second.  Mars, by contrast, is ALREADY a very nice environment for silicon-based life -- by which I mean AI robots and so forth.
</p><p>I consider AI robots to be the future of intelligence, which we are blessed/fated/doomed to create.  They will absolutely ADORE the cold no-oxygen environment, and the low light conditions are fine for fission-/fusion-/other-powered critters as they will be.  So don't mess Mars up, because they can't happily live here on Earth.</p></div>
	</htmltext>
<tokenext>Obviously there are a multitude of inhibitors to such growth but , if we can confirm there is no existing life on Mars there is nothing preventing us from launching a giant rocket to Mars fill with a good cocktail of microbes , algeas , etc and seed bombing the piss outta the planet and letting natural selection establish an ecosystem .
I argue the opposite .
Make the planet into a giant industrial factory where raw pollutants are just dumped out the window .
Anything capable of living in that environment would have to thrive on said wastes.Why convert Mars into a meat-friendly environment ?
We already have one of those , and given similar engineering effort , we could turn Venus back into a second .
Mars , by contrast , is ALREADY a very nice environment for silicon-based life -- by which I mean AI robots and so forth .
I consider AI robots to be the future of intelligence , which we are blessed/fated/doomed to create .
They will absolutely ADORE the cold no-oxygen environment , and the low light conditions are fine for fission-/fusion-/other-powered critters as they will be .
So do n't mess Mars up , because they ca n't happily live here on Earth .</tokentext>
<sentencetext>Obviously there are a multitude of inhibitors to such growth but, if we can confirm there is no existing life on Mars there is nothing preventing us from launching a giant rocket to Mars fill with a good cocktail of microbes, algeas, etc and seed bombing the piss outta the planet and letting natural selection establish an ecosystem.
I argue the opposite.
Make the planet into a giant industrial factory where raw pollutants are just dumped out the window.
Anything capable of living in that environment would have to thrive on said wastes.Why convert Mars into a meat-friendly environment?
We already have one of those, and given similar engineering effort, we could turn Venus back into a second.
Mars, by contrast, is ALREADY a very nice environment for silicon-based life -- by which I mean AI robots and so forth.
I consider AI robots to be the future of intelligence, which we are blessed/fated/doomed to create.
They will absolutely ADORE the cold no-oxygen environment, and the low light conditions are fine for fission-/fusion-/other-powered critters as they will be.
So don't mess Mars up, because they can't happily live here on Earth.
	</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31024362</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31027948</id>
	<title>Re:Space Transportation System Orbital Vehicle Man</title>
	<author>holmstar</author>
	<datestamp>1265282880000</datestamp>
	<modclass>Informativ</modclass>
	<modscore>2</modscore>
	<htmltext>Um...  sorry to burst your bubble but <b>nothing</b> boils at absolute zero.  And the ambient temperature of space is pretty warm, actually.  (in terms of the temperature of the sparse distribution of particles out there)<br>
<br>
The reason you would freeze in space (besides boiling, which is an endothermic process) is because you radiate energy via infrared light faster than you acquire it via bumping into hot space particles.</htmltext>
<tokenext>Um... sorry to burst your bubble but nothing boils at absolute zero .
And the ambient temperature of space is pretty warm , actually .
( in terms of the temperature of the sparse distribution of particles out there ) The reason you would freeze in space ( besides boiling , which is an endothermic process ) is because you radiate energy via infrared light faster than you acquire it via bumping into hot space particles .</tokentext>
<sentencetext>Um...  sorry to burst your bubble but nothing boils at absolute zero.
And the ambient temperature of space is pretty warm, actually.
(in terms of the temperature of the sparse distribution of particles out there)

The reason you would freeze in space (besides boiling, which is an endothermic process) is because you radiate energy via infrared light faster than you acquire it via bumping into hot space particles.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31024900</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31025276</id>
	<title>Why bother</title>
	<author>Anonymous</author>
	<datestamp>1265313000000</datestamp>
	<modclass>Insightful</modclass>
	<modscore>1</modscore>
	<htmltext><p>Mr. Obama just neutered our maned space program. Plans for the moon are shattered to say nothing about mars. We can even get into low earth orbit anymore after the shuttle is retired. What a mess. We no longer have any direction for manned space travel. So why are we still talking about this stuff.. Dream on.</p></htmltext>
<tokenext>Mr. Obama just neutered our maned space program .
Plans for the moon are shattered to say nothing about mars .
We can even get into low earth orbit anymore after the shuttle is retired .
What a mess .
We no longer have any direction for manned space travel .
So why are we still talking about this stuff.. Dream on .</tokentext>
<sentencetext>Mr. Obama just neutered our maned space program.
Plans for the moon are shattered to say nothing about mars.
We can even get into low earth orbit anymore after the shuttle is retired.
What a mess.
We no longer have any direction for manned space travel.
So why are we still talking about this stuff.. Dream on.</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31024916</id>
	<title>Re:Venus</title>
	<author>Anonymous</author>
	<datestamp>1265311200000</datestamp>
	<modclass>None</modclass>
	<modscore>0</modscore>
	<htmltext><p><div class="quote"><p>I don't understand what the obsession with going to Mars is. Frankly I think Venus is where we should target our efforts. It has an atmosphere (albeit hazardous to human life) and is about 20\% closer to us then Mars. Granted, Venus' atmosphere is about 97\% CO2 but I would think that it would be a lot easier to bioengineer something which would survive and thrive in the Venutian atmosphere while changing the CO2 to Oxygen.</p></div><p>We have a decent idea of the challenges of Mars. It's dry and space-y, but not fundamentally much different than high-atmosphere Earth. Venus, however, is an enigma. Whereas we've explored the surface of Mars with rovers and landers for years at a time, until their batteries ran out, our few successful landings on Venus have lasted for hours before the environment destroyed them. The permanent cloud layer makes detailed analyses of the surface difficult. Basically, we have a poor idea of what's down there. Europa is a friendlier planet than Venus.</p></div>
	</htmltext>
<tokenext>I do n't understand what the obsession with going to Mars is .
Frankly I think Venus is where we should target our efforts .
It has an atmosphere ( albeit hazardous to human life ) and is about 20 \ % closer to us then Mars .
Granted , Venus ' atmosphere is about 97 \ % CO2 but I would think that it would be a lot easier to bioengineer something which would survive and thrive in the Venutian atmosphere while changing the CO2 to Oxygen.We have a decent idea of the challenges of Mars .
It 's dry and space-y , but not fundamentally much different than high-atmosphere Earth .
Venus , however , is an enigma .
Whereas we 've explored the surface of Mars with rovers and landers for years at a time , until their batteries ran out , our few successful landings on Venus have lasted for hours before the environment destroyed them .
The permanent cloud layer makes detailed analyses of the surface difficult .
Basically , we have a poor idea of what 's down there .
Europa is a friendlier planet than Venus .</tokentext>
<sentencetext>I don't understand what the obsession with going to Mars is.
Frankly I think Venus is where we should target our efforts.
It has an atmosphere (albeit hazardous to human life) and is about 20\% closer to us then Mars.
Granted, Venus' atmosphere is about 97\% CO2 but I would think that it would be a lot easier to bioengineer something which would survive and thrive in the Venutian atmosphere while changing the CO2 to Oxygen.We have a decent idea of the challenges of Mars.
It's dry and space-y, but not fundamentally much different than high-atmosphere Earth.
Venus, however, is an enigma.
Whereas we've explored the surface of Mars with rovers and landers for years at a time, until their batteries ran out, our few successful landings on Venus have lasted for hours before the environment destroyed them.
The permanent cloud layer makes detailed analyses of the surface difficult.
Basically, we have a poor idea of what's down there.
Europa is a friendlier planet than Venus.
	</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31023986</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31025104</id>
	<title>Re:Mars</title>
	<author>ultranova</author>
	<datestamp>1265312100000</datestamp>
	<modclass>Interestin</modclass>
	<modscore>3</modscore>
	<htmltext><blockquote><div><p>Make the planet into a giant industrial factory where raw pollutants are just dumped out the window. Anything capable of living in that environment would have to thrive on said wastes.</p></div> </blockquote><p>That doesn't make sense. You'd need to lift the products out of Mars's gravity well to get them to Earth - I assume that you didn't mean people to live in the toxic dump planet. If you have that kind of technology, you'd be much better off building your industrial base on asteroids; not only do they have negligible gravity well, but several of them are actually composed of almost pure metals.</p><p>Planets are too valuable to waste as toxic dumps, and space-based industry can deliver anywhere with the speed of a shooting star<nobr> <wbr></nobr>;).</p></div>
	</htmltext>
<tokenext>Make the planet into a giant industrial factory where raw pollutants are just dumped out the window .
Anything capable of living in that environment would have to thrive on said wastes .
That does n't make sense .
You 'd need to lift the products out of Mars 's gravity well to get them to Earth - I assume that you did n't mean people to live in the toxic dump planet .
If you have that kind of technology , you 'd be much better off building your industrial base on asteroids ; not only do they have negligible gravity well , but several of them are actually composed of almost pure metals.Planets are too valuable to waste as toxic dumps , and space-based industry can deliver anywhere with the speed of a shooting star ; ) .</tokentext>
<sentencetext>Make the planet into a giant industrial factory where raw pollutants are just dumped out the window.
Anything capable of living in that environment would have to thrive on said wastes.
That doesn't make sense.
You'd need to lift the products out of Mars's gravity well to get them to Earth - I assume that you didn't mean people to live in the toxic dump planet.
If you have that kind of technology, you'd be much better off building your industrial base on asteroids; not only do they have negligible gravity well, but several of them are actually composed of almost pure metals.Planets are too valuable to waste as toxic dumps, and space-based industry can deliver anywhere with the speed of a shooting star ;).
	</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31024362</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31028022</id>
	<title>Re:Of the space variety</title>
	<author>whatajoke</author>
	<datestamp>1265283120000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext>I don't get it.</htmltext>
<tokenext>I do n't get it .</tokentext>
<sentencetext>I don't get it.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31023754</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31025820</id>
	<title>Re:Venus</title>
	<author>mcgrew</author>
	<datestamp>1265316300000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext><p>It's hot enough to melt metal there. Way harder for machines to exist, impossible for humans. The atmosphere isn't what would kill you, we can live in no atmospghere at all with the proper space suit, it's the extreme heat. I seriously doubt it would be easy to design a suit that could keep you alive on Venus.</p></htmltext>
<tokenext>It 's hot enough to melt metal there .
Way harder for machines to exist , impossible for humans .
The atmosphere is n't what would kill you , we can live in no atmospghere at all with the proper space suit , it 's the extreme heat .
I seriously doubt it would be easy to design a suit that could keep you alive on Venus .</tokentext>
<sentencetext>It's hot enough to melt metal there.
Way harder for machines to exist, impossible for humans.
The atmosphere isn't what would kill you, we can live in no atmospghere at all with the proper space suit, it's the extreme heat.
I seriously doubt it would be easy to design a suit that could keep you alive on Venus.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31023986</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31025126</id>
	<title>terraform from a distance</title>
	<author>madcat2c</author>
	<datestamp>1265312220000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext>I would like them to try the re-entry survival test. I could see humans building big hollow concrete bullets that we could shoot at Mars, would survive re-entry, but shatter when hitting the ground and spread around some hearty plant life.
<br> <br>
We could just sit back and shoot these things at mars and pelt it with different plants to see if anything takes. I am guessing we would want to aim for the areas that border the north and south poles, or craters with shade that might have a chance to hold water for more than a few seconds so the plants could get a drink.</htmltext>
<tokenext>I would like them to try the re-entry survival test .
I could see humans building big hollow concrete bullets that we could shoot at Mars , would survive re-entry , but shatter when hitting the ground and spread around some hearty plant life .
We could just sit back and shoot these things at mars and pelt it with different plants to see if anything takes .
I am guessing we would want to aim for the areas that border the north and south poles , or craters with shade that might have a chance to hold water for more than a few seconds so the plants could get a drink .</tokentext>
<sentencetext>I would like them to try the re-entry survival test.
I could see humans building big hollow concrete bullets that we could shoot at Mars, would survive re-entry, but shatter when hitting the ground and spread around some hearty plant life.
We could just sit back and shoot these things at mars and pelt it with different plants to see if anything takes.
I am guessing we would want to aim for the areas that border the north and south poles, or craters with shade that might have a chance to hold water for more than a few seconds so the plants could get a drink.</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31057382</id>
	<title>That explains it.</title>
	<author>formfeed</author>
	<datestamp>1265558880000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext>That explains why the little green men are green.
<p>
Still don't know why they are little - or men</p></htmltext>
<tokenext>That explains why the little green men are green .
Still do n't know why they are little - or men</tokentext>
<sentencetext>That explains why the little green men are green.
Still don't know why they are little - or men</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31023710</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31023770</id>
	<title>Mars</title>
	<author>Anonymous</author>
	<datestamp>1265305920000</datestamp>
	<modclass>Interestin</modclass>
	<modscore>5</modscore>
	<htmltext><p>The purpose of this isn't really to teraform Mars.  That is way too far off in the future.  At this point we don't even have an idea when humans will finally get there.  The real goal of this research is to understand the limits to life in extreme environments.  This can help us to better understand where we might find life and whether it is possible that there might still be life on Mars today.  Glad to see some useful research being done on the ISS after all the time and effort to get it up there.</p></htmltext>
<tokenext>The purpose of this is n't really to teraform Mars .
That is way too far off in the future .
At this point we do n't even have an idea when humans will finally get there .
The real goal of this research is to understand the limits to life in extreme environments .
This can help us to better understand where we might find life and whether it is possible that there might still be life on Mars today .
Glad to see some useful research being done on the ISS after all the time and effort to get it up there .</tokentext>
<sentencetext>The purpose of this isn't really to teraform Mars.
That is way too far off in the future.
At this point we don't even have an idea when humans will finally get there.
The real goal of this research is to understand the limits to life in extreme environments.
This can help us to better understand where we might find life and whether it is possible that there might still be life on Mars today.
Glad to see some useful research being done on the ISS after all the time and effort to get it up there.</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31031470</id>
	<title>Re:Of the space variety</title>
	<author>Ihmhi</author>
	<datestamp>1265307900000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext><p>It's a quantum joke. It's both funny and unfunny at the same time. Try turning your monitor around 180 degrees and reading it with a mirror.</p></htmltext>
<tokenext>It 's a quantum joke .
It 's both funny and unfunny at the same time .
Try turning your monitor around 180 degrees and reading it with a mirror .</tokentext>
<sentencetext>It's a quantum joke.
It's both funny and unfunny at the same time.
Try turning your monitor around 180 degrees and reading it with a mirror.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31028022</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31041256</id>
	<title>Re:The only link to "terraforming Mars":</title>
	<author>Wardish</author>
	<datestamp>1265374200000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext><p>RTFA</p><p>They did test for martian conditions, including direct sunlight as well as shaded.<nobr> <wbr></nobr>/Insanity is highly underrated.</p></htmltext>
<tokenext>RTFAThey did test for martian conditions , including direct sunlight as well as shaded .
/Insanity is highly underrated .</tokentext>
<sentencetext>RTFAThey did test for martian conditions, including direct sunlight as well as shaded.
/Insanity is highly underrated.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31024426</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31024166</id>
	<title>Re:It's not open space...</title>
	<author>Anonymous</author>
	<datestamp>1265307900000</datestamp>
	<modclass>Insightful</modclass>
	<modscore>1</modscore>
	<htmltext><p>This is important, but still doesn't rule out the usefulness of the experiment, since many of the panspermia advocates suggest that lifeforms might have evolved in such crazy places as asteroid fields, cosmic dust clouds, and the like.</p><p>these cosmic phenomena aren't "open space" either, and in the case of cosmic dust clouds several AU across, there is more than enough dust to stop a good majority of cosmic radiation.</p><p>The mere fact that this lichen (which is a complex, multicellular, and even symbiotic lifeform-- as opposed to say-- e.choli) has been able to endure for such a long time out there is pretty impressive for shooting down the "No atmosphere means no life jackass." nay sayers.</p><p>Then there is always the interesting situation of food cultivation in deep space, or in very harsh environments (like on the moon; NASA isn't the only agency that can get there.)</p><p>As for terraforming though, I would be much more interested in seeding the Venusian atmosphere with thermophilic microbes; much like the kind found in ocean vents, or in geysers.</p><p>If these microbes were engineered to produce heat-stable sulfur precipitates as waste products (after consuming sulfuric acid, one of the major greenhouse substances on venus) it could induce global cooling on venus. This is especially true if the precipitate is light in color, because then you would get a double-whammy with the albedo effect.</p><p>All in all, I find this kind of research very interesting.</p></htmltext>
<tokenext>This is important , but still does n't rule out the usefulness of the experiment , since many of the panspermia advocates suggest that lifeforms might have evolved in such crazy places as asteroid fields , cosmic dust clouds , and the like.these cosmic phenomena are n't " open space " either , and in the case of cosmic dust clouds several AU across , there is more than enough dust to stop a good majority of cosmic radiation.The mere fact that this lichen ( which is a complex , multicellular , and even symbiotic lifeform-- as opposed to say-- e.choli ) has been able to endure for such a long time out there is pretty impressive for shooting down the " No atmosphere means no life jackass .
" nay sayers.Then there is always the interesting situation of food cultivation in deep space , or in very harsh environments ( like on the moon ; NASA is n't the only agency that can get there .
) As for terraforming though , I would be much more interested in seeding the Venusian atmosphere with thermophilic microbes ; much like the kind found in ocean vents , or in geysers.If these microbes were engineered to produce heat-stable sulfur precipitates as waste products ( after consuming sulfuric acid , one of the major greenhouse substances on venus ) it could induce global cooling on venus .
This is especially true if the precipitate is light in color , because then you would get a double-whammy with the albedo effect.All in all , I find this kind of research very interesting .</tokentext>
<sentencetext>This is important, but still doesn't rule out the usefulness of the experiment, since many of the panspermia advocates suggest that lifeforms might have evolved in such crazy places as asteroid fields, cosmic dust clouds, and the like.these cosmic phenomena aren't "open space" either, and in the case of cosmic dust clouds several AU across, there is more than enough dust to stop a good majority of cosmic radiation.The mere fact that this lichen (which is a complex, multicellular, and even symbiotic lifeform-- as opposed to say-- e.choli) has been able to endure for such a long time out there is pretty impressive for shooting down the "No atmosphere means no life jackass.
" nay sayers.Then there is always the interesting situation of food cultivation in deep space, or in very harsh environments (like on the moon; NASA isn't the only agency that can get there.
)As for terraforming though, I would be much more interested in seeding the Venusian atmosphere with thermophilic microbes; much like the kind found in ocean vents, or in geysers.If these microbes were engineered to produce heat-stable sulfur precipitates as waste products (after consuming sulfuric acid, one of the major greenhouse substances on venus) it could induce global cooling on venus.
This is especially true if the precipitate is light in color, because then you would get a double-whammy with the albedo effect.All in all, I find this kind of research very interesting.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31023828</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31024002</id>
	<title>Re:fuck they gonna get cosmic ray powerz</title>
	<author>kehren77</author>
	<datestamp>1265307180000</datestamp>
	<modclass>Funny</modclass>
	<modscore>2</modscore>
	<htmltext><p>We'll be fine as long as their powerz level isn't over 9000.</p></htmltext>
<tokenext>We 'll be fine as long as their powerz level is n't over 9000 .</tokentext>
<sentencetext>We'll be fine as long as their powerz level isn't over 9000.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31023750</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31025112</id>
	<title>It's not terraforming</title>
	<author>mbone</author>
	<datestamp>1265312160000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext><p>These experiments are not about terraforming (Mars, for example, does not have a vacuum at the surface), they are about the exchange of biological  material between the Earth and Mars. We know that material can be sent between the two planets relatively gently (by big meteorite impacts); this research makes it almost a certainty that some life could survive the trip.</p></htmltext>
<tokenext>These experiments are not about terraforming ( Mars , for example , does not have a vacuum at the surface ) , they are about the exchange of biological material between the Earth and Mars .
We know that material can be sent between the two planets relatively gently ( by big meteorite impacts ) ; this research makes it almost a certainty that some life could survive the trip .</tokentext>
<sentencetext>These experiments are not about terraforming (Mars, for example, does not have a vacuum at the surface), they are about the exchange of biological  material between the Earth and Mars.
We know that material can be sent between the two planets relatively gently (by big meteorite impacts); this research makes it almost a certainty that some life could survive the trip.</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31024362</id>
	<title>Re:Mars</title>
	<author>kenp2002</author>
	<datestamp>1265308680000</datestamp>
	<modclass>Interestin</modclass>
	<modscore>5</modscore>
	<htmltext><p><div class="quote"><p>The purpose of this isn't really to teraform Mars.  That is way too far off in the future. </p></div><p>Actually terraforming a planet with plant life isn't necessarily a slow process at all. If we agree on the idea of human made global warming we have made substantial changes to a planet's ecosystem in a short amount of time.</p><p>Given the growth rate of a variety of micro organisms and small less complicated plant life we can induce a massive change in Mar's ecosystem in a short amount of time.</p><p>Here is a simple example. Given the growth rate of a species of plant that can survive on Mars. X rate of growth over Y distance. Without any natural predators the upper limit of that growth is R based on resources. Until we hit R in general we are talking near exponential growth (not taking into account localize competition with thins out the existing population.) Given this basic idea the mobility of plant life on Mars could be substantial (We are talking a radius increase of hundreds of miles per year.) You could literally cover an entire planet in a plant (again barring predators and R limits) with the lifetime of a human being.</p><p>Obviously there are a multitude of inhibitors to such growth but, if we can confirm there is no existing life on Mars there is nothing preventing us from launching a giant rocket to Mars fill with a good cocktail of microbes, algeas, etc and seed bombing the piss outta the planet and letting natural selection establish an ecosystem. I argue the opposite. Make the planet into a giant industrial factory where raw pollutants are just dumped out the window. Anything capable of living in that environment would have to thrive on said wastes.</p></div>
	</htmltext>
<tokenext>The purpose of this is n't really to teraform Mars .
That is way too far off in the future .
Actually terraforming a planet with plant life is n't necessarily a slow process at all .
If we agree on the idea of human made global warming we have made substantial changes to a planet 's ecosystem in a short amount of time.Given the growth rate of a variety of micro organisms and small less complicated plant life we can induce a massive change in Mar 's ecosystem in a short amount of time.Here is a simple example .
Given the growth rate of a species of plant that can survive on Mars .
X rate of growth over Y distance .
Without any natural predators the upper limit of that growth is R based on resources .
Until we hit R in general we are talking near exponential growth ( not taking into account localize competition with thins out the existing population .
) Given this basic idea the mobility of plant life on Mars could be substantial ( We are talking a radius increase of hundreds of miles per year .
) You could literally cover an entire planet in a plant ( again barring predators and R limits ) with the lifetime of a human being.Obviously there are a multitude of inhibitors to such growth but , if we can confirm there is no existing life on Mars there is nothing preventing us from launching a giant rocket to Mars fill with a good cocktail of microbes , algeas , etc and seed bombing the piss outta the planet and letting natural selection establish an ecosystem .
I argue the opposite .
Make the planet into a giant industrial factory where raw pollutants are just dumped out the window .
Anything capable of living in that environment would have to thrive on said wastes .</tokentext>
<sentencetext>The purpose of this isn't really to teraform Mars.
That is way too far off in the future.
Actually terraforming a planet with plant life isn't necessarily a slow process at all.
If we agree on the idea of human made global warming we have made substantial changes to a planet's ecosystem in a short amount of time.Given the growth rate of a variety of micro organisms and small less complicated plant life we can induce a massive change in Mar's ecosystem in a short amount of time.Here is a simple example.
Given the growth rate of a species of plant that can survive on Mars.
X rate of growth over Y distance.
Without any natural predators the upper limit of that growth is R based on resources.
Until we hit R in general we are talking near exponential growth (not taking into account localize competition with thins out the existing population.
) Given this basic idea the mobility of plant life on Mars could be substantial (We are talking a radius increase of hundreds of miles per year.
) You could literally cover an entire planet in a plant (again barring predators and R limits) with the lifetime of a human being.Obviously there are a multitude of inhibitors to such growth but, if we can confirm there is no existing life on Mars there is nothing preventing us from launching a giant rocket to Mars fill with a good cocktail of microbes, algeas, etc and seed bombing the piss outta the planet and letting natural selection establish an ecosystem.
I argue the opposite.
Make the planet into a giant industrial factory where raw pollutants are just dumped out the window.
Anything capable of living in that environment would have to thrive on said wastes.
	</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31023770</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31025030</id>
	<title>Where's William Shatner when you need him?</title>
	<author>MrEricSir</author>
	<datestamp>1265311800000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext><p>Khaaaaaaan!</p></htmltext>
<tokenext>Khaaaaaaan !</tokentext>
<sentencetext>Khaaaaaaan!</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31024106</id>
	<title>Re:Venus</title>
	<author>Anonymous</author>
	<datestamp>1265307660000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext>I think the challenge with Venus is bioengineering something that can withstand the surface pressure of 93 bar (9.3 MPa).</htmltext>
<tokenext>I think the challenge with Venus is bioengineering something that can withstand the surface pressure of 93 bar ( 9.3 MPa ) .</tokentext>
<sentencetext>I think the challenge with Venus is bioengineering something that can withstand the surface pressure of 93 bar (9.3 MPa).</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31023986</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31027092</id>
	<title>Buffalo...</title>
	<author>Anonymous</author>
	<datestamp>1265278380000</datestamp>
	<modclass>None</modclass>
	<modscore>0</modscore>
	<htmltext><p>[http://en.wikipedia.org/wiki/Buffalo\_buffalo\_Buffalo\_buffalo\_buffalo\_buffalo\_Buffalo\_buffalo|Buffalo buffalo Buffalo buffalo buffalo buffalo Buffalo buffalo.]</p></htmltext>
<tokenext>[ http : //en.wikipedia.org/wiki/Buffalo \ _buffalo \ _Buffalo \ _buffalo \ _buffalo \ _buffalo \ _Buffalo \ _buffalo | Buffalo buffalo Buffalo buffalo buffalo buffalo Buffalo buffalo .
]</tokentext>
<sentencetext>[http://en.wikipedia.org/wiki/Buffalo\_buffalo\_Buffalo\_buffalo\_buffalo\_buffalo\_Buffalo\_buffalo|Buffalo buffalo Buffalo buffalo buffalo buffalo Buffalo buffalo.
]</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31024438</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31024900</id>
	<title>Space Transportation System Orbital Vehicle Man</title>
	<author>HTH NE1</author>
	<datestamp>1265311140000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext><p><div class="quote"><p>Space is a hostile environment for living things</p></div><p>In fact, they boil at absolute zero<br>And there's no matter there for them to live off of<br>If you tried</p><p>But then I'm no scientist<br>I just work here<br>As a Space Transportation System Orbital Vehicle maintainer<br>A Space Transportation System Orbital Vehicle-man</p><p>And think I'm going to be late<br>Getting home for dinner</p></div>
	</htmltext>
<tokenext>Space is a hostile environment for living thingsIn fact , they boil at absolute zeroAnd there 's no matter there for them to live off ofIf you triedBut then I 'm no scientistI just work hereAs a Space Transportation System Orbital Vehicle maintainerA Space Transportation System Orbital Vehicle-manAnd think I 'm going to be lateGetting home for dinner</tokentext>
<sentencetext>Space is a hostile environment for living thingsIn fact, they boil at absolute zeroAnd there's no matter there for them to live off ofIf you triedBut then I'm no scientistI just work hereAs a Space Transportation System Orbital Vehicle maintainerA Space Transportation System Orbital Vehicle-manAnd think I'm going to be lateGetting home for dinner
	</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31024964</id>
	<title>Re:It's not open space...</title>
	<author>Remus Shepherd</author>
	<datestamp>1265311440000</datestamp>
	<modclass>Informativ</modclass>
	<modscore>5</modscore>
	<htmltext><p>Not that big a difference, and not in the way you think.</p><p>The magnetosphere does nothing about UV radiation, which is the biggest short-term threat from the sun to living things.  If you're above the ozone layer, you're getting almost full-strength illumination in UV.</p><p>And although the Earth's magnetosphere diverts a lot of the solar wind, it does it in such a way that many high energy particles are trapped in the Van Allen belts, creating regions of near-Earth orbit that have much more particle radiation than the heliosphere.  The solar wind has particles up to 100 eV; the inner Van Allen, which the ISS passes through, has energies up to 100 <i>MeV.</i></p><p>So no, it's not 'open space'.  It's near Earth orbit, which in some respects is <b>worse</b> than deep space.</p><p>Either way, it's a brutal test of endurance for any living thing.</p></htmltext>
<tokenext>Not that big a difference , and not in the way you think.The magnetosphere does nothing about UV radiation , which is the biggest short-term threat from the sun to living things .
If you 're above the ozone layer , you 're getting almost full-strength illumination in UV.And although the Earth 's magnetosphere diverts a lot of the solar wind , it does it in such a way that many high energy particles are trapped in the Van Allen belts , creating regions of near-Earth orbit that have much more particle radiation than the heliosphere .
The solar wind has particles up to 100 eV ; the inner Van Allen , which the ISS passes through , has energies up to 100 MeV.So no , it 's not 'open space' .
It 's near Earth orbit , which in some respects is worse than deep space.Either way , it 's a brutal test of endurance for any living thing .</tokentext>
<sentencetext>Not that big a difference, and not in the way you think.The magnetosphere does nothing about UV radiation, which is the biggest short-term threat from the sun to living things.
If you're above the ozone layer, you're getting almost full-strength illumination in UV.And although the Earth's magnetosphere diverts a lot of the solar wind, it does it in such a way that many high energy particles are trapped in the Van Allen belts, creating regions of near-Earth orbit that have much more particle radiation than the heliosphere.
The solar wind has particles up to 100 eV; the inner Van Allen, which the ISS passes through, has energies up to 100 MeV.So no, it's not 'open space'.
It's near Earth orbit, which in some respects is worse than deep space.Either way, it's a brutal test of endurance for any living thing.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31023828</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31024156</id>
	<title>shameless plug to ISS videos</title>
	<author>giuntag</author>
	<datestamp>1265307840000</datestamp>
	<modclass>Interestin</modclass>
	<modscore>2</modscore>
	<htmltext><p>ESA just launched a new website for hosting videos - check it out</p><p><a href="http://multimedia.esa.int/content/search?SearchText=iss&amp;SearchButton=Go" title="esa.int" rel="nofollow">http://multimedia.esa.int/content/search?SearchText=iss&amp;SearchButton=Go</a> [esa.int]</p><p><a href="http://multimedia.esa.int/content/search?SearchText=mars&amp;SearchButton=Go" title="esa.int" rel="nofollow">http://multimedia.esa.int/content/search?SearchText=mars&amp;SearchButton=Go</a> [esa.int]</p></htmltext>
<tokenext>ESA just launched a new website for hosting videos - check it outhttp : //multimedia.esa.int/content/search ? SearchText = iss&amp;SearchButton = Go [ esa.int ] http : //multimedia.esa.int/content/search ? SearchText = mars&amp;SearchButton = Go [ esa.int ]</tokentext>
<sentencetext>ESA just launched a new website for hosting videos - check it outhttp://multimedia.esa.int/content/search?SearchText=iss&amp;SearchButton=Go [esa.int]http://multimedia.esa.int/content/search?SearchText=mars&amp;SearchButton=Go [esa.int]</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31024132</id>
	<title>Re:Venus</title>
	<author>benjamindees</author>
	<datestamp>1265307780000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext><p>Biological terraforming of Venus is pretty much completely written off, mostly because:</p><p>1) It would have to float.</p><p>2) The products would have to float too, because if they fell to the surface the enormous temperature and pressure would cause them to revert back to CO2.</p><p>Venus is an extremely harsh environment.</p></htmltext>
<tokenext>Biological terraforming of Venus is pretty much completely written off , mostly because : 1 ) It would have to float.2 ) The products would have to float too , because if they fell to the surface the enormous temperature and pressure would cause them to revert back to CO2.Venus is an extremely harsh environment .</tokentext>
<sentencetext>Biological terraforming of Venus is pretty much completely written off, mostly because:1) It would have to float.2) The products would have to float too, because if they fell to the surface the enormous temperature and pressure would cause them to revert back to CO2.Venus is an extremely harsh environment.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31023986</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31024796</id>
	<title>Meanwhile...</title>
	<author>Anonymous</author>
	<datestamp>1265310660000</datestamp>
	<modclass>Funny</modclass>
	<modscore>2</modscore>
	<htmltext><p>Obama cancelled NASA.</p></htmltext>
<tokenext>Obama cancelled NASA .</tokentext>
<sentencetext>Obama cancelled NASA.</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31028924</id>
	<title>Re:Venus</title>
	<author>Idiomatick</author>
	<datestamp>1265288040000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext>Floating on venus takes no energy... It'd be more like building a sub or... a city out of subs. Comparing it to flying things on earth is a little unfair.<br> <br>Meh though, I think we should triple the space budget (taking out of the military) and go to both.</htmltext>
<tokenext>Floating on venus takes no energy... It 'd be more like building a sub or... a city out of subs .
Comparing it to flying things on earth is a little unfair .
Meh though , I think we should triple the space budget ( taking out of the military ) and go to both .</tokentext>
<sentencetext>Floating on venus takes no energy... It'd be more like building a sub or... a city out of subs.
Comparing it to flying things on earth is a little unfair.
Meh though, I think we should triple the space budget (taking out of the military) and go to both.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31024664</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31025346</id>
	<title>Slow rotation of Venus</title>
	<author>sznupi</author>
	<datestamp>1265313420000</datestamp>
	<modclass>Informativ</modclass>
	<modscore>2</modscore>
	<htmltext><p>Venus rotates on the order of "once per year". WHile this doesn't mean much with its current thick atmosphere, it's really, really not conductive to Earth-like enviroments. Youd would get variations between the harshest Antarctic night and Sahara heat with separation of 100 days between them. The atmosphere would freeze solid on the night side, with day side dominated by evaporation and completelly dry.</p></htmltext>
<tokenext>Venus rotates on the order of " once per year " .
WHile this does n't mean much with its current thick atmosphere , it 's really , really not conductive to Earth-like enviroments .
Youd would get variations between the harshest Antarctic night and Sahara heat with separation of 100 days between them .
The atmosphere would freeze solid on the night side , with day side dominated by evaporation and completelly dry .</tokentext>
<sentencetext>Venus rotates on the order of "once per year".
WHile this doesn't mean much with its current thick atmosphere, it's really, really not conductive to Earth-like enviroments.
Youd would get variations between the harshest Antarctic night and Sahara heat with separation of 100 days between them.
The atmosphere would freeze solid on the night side, with day side dominated by evaporation and completelly dry.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31023986</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31024966</id>
	<title>Re:Mars</title>
	<author>sznupi</author>
	<datestamp>1265311440000</datestamp>
	<modclass>None</modclass>
	<modscore>2</modscore>
	<htmltext><p><i>if we can confirm there is no existing life on Mars</i></p><p>This one will be hard, Mars is probably too borderline with is invorement to say with high certainity, even if "we haven't found anything yet"</p><p>Also, I'm not sure if dumping waste would be productive...yes, some life will hang on; but the resulting biosphere won't be very useful to us.</p></htmltext>
<tokenext>if we can confirm there is no existing life on MarsThis one will be hard , Mars is probably too borderline with is invorement to say with high certainity , even if " we have n't found anything yet " Also , I 'm not sure if dumping waste would be productive...yes , some life will hang on ; but the resulting biosphere wo n't be very useful to us .</tokentext>
<sentencetext>if we can confirm there is no existing life on MarsThis one will be hard, Mars is probably too borderline with is invorement to say with high certainity, even if "we haven't found anything yet"Also, I'm not sure if dumping waste would be productive...yes, some life will hang on; but the resulting biosphere won't be very useful to us.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31024362</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31024636</id>
	<title>One way mission to mars</title>
	<author>WindBourne</author>
	<datestamp>1265309940000</datestamp>
	<modclass>None</modclass>
	<modscore>0</modscore>
	<htmltext>We really need the first manned missions to mars to be one-way. They need to have a base there, with power available, and plenty of supplies stored as well as sent. But, the first group should be there for over a decade before we even talk about bringing anybody back. And that is if they want to come back. But, if there is a chance of life there, we need to know that it will not kill us all. If nothing else, think about how invasive species have been here.</htmltext>
<tokenext>We really need the first manned missions to mars to be one-way .
They need to have a base there , with power available , and plenty of supplies stored as well as sent .
But , the first group should be there for over a decade before we even talk about bringing anybody back .
And that is if they want to come back .
But , if there is a chance of life there , we need to know that it will not kill us all .
If nothing else , think about how invasive species have been here .</tokentext>
<sentencetext>We really need the first manned missions to mars to be one-way.
They need to have a base there, with power available, and plenty of supplies stored as well as sent.
But, the first group should be there for over a decade before we even talk about bringing anybody back.
And that is if they want to come back.
But, if there is a chance of life there, we need to know that it will not kill us all.
If nothing else, think about how invasive species have been here.</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31023936</id>
	<title>Saw this movie</title>
	<author>kehren77</author>
	<datestamp>1265306880000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext><p>Val Kilmer rides a old Russian rocket to safety after killing a military robot which for some reason didn't have its search and destroy switch permanently turned to off before leaving Earth.</p></htmltext>
<tokenext>Val Kilmer rides a old Russian rocket to safety after killing a military robot which for some reason did n't have its search and destroy switch permanently turned to off before leaving Earth .</tokentext>
<sentencetext>Val Kilmer rides a old Russian rocket to safety after killing a military robot which for some reason didn't have its search and destroy switch permanently turned to off before leaving Earth.</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31024626</id>
	<title>Re:Venus</title>
	<author>element-o.p.</author>
	<datestamp>1265309880000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext>I'm with you re: Venus vs. Mars for terraforming.  In addition to all the points you raised, the gravity of Venus is about 90\% that of earth (according to <a href="http://astrogeology.usgs.gov/Projects/BrowseTheSolarSystem/venus.html" title="usgs.gov">http://astrogeology.usgs.gov/Projects/BrowseTheSolarSystem/venus.html</a> [usgs.gov]).  Mars' gravity is approximately 1/3 that of earth.  This is important because less gravity == less atmospheric pressure on the surface of the planet.  Consequently, <a href="http://starryskies.com/solar\_system/mars/martian\_atmosphere.html" title="starryskies.com">the density of the Martian atmosphere is 1\% that of earth</a> [starryskies.com].  That's really freaking thin, even if you are trying to breathe pure oxygen.   <a href="http://www.engineeringtoolbox.com/standard-atmosphere-d\_604.html" title="engineeringtoolbox.com">This site</a> [engineeringtoolbox.com] shows that the density at 100,000 feet is roughly 1\% that of sea level at earth, and from what I remember reading as a kid who thought the SR-71 was just the coolest airplane ever, pilots above 60,000 feet had to wear pressure suits because a simple oxygen mask couldn't provide enough pressure to sustain consciousness at those atmospheric pressures.
<br> <br>
In other words, <i>Total Recall</i> notwithstanding, humans will not <i>ever</i> be able to breathe the atmosphere unaided on a terraformed Mars without some radical genetic engineering.</htmltext>
<tokenext>I 'm with you re : Venus vs. Mars for terraforming .
In addition to all the points you raised , the gravity of Venus is about 90 \ % that of earth ( according to http : //astrogeology.usgs.gov/Projects/BrowseTheSolarSystem/venus.html [ usgs.gov ] ) .
Mars ' gravity is approximately 1/3 that of earth .
This is important because less gravity = = less atmospheric pressure on the surface of the planet .
Consequently , the density of the Martian atmosphere is 1 \ % that of earth [ starryskies.com ] .
That 's really freaking thin , even if you are trying to breathe pure oxygen .
This site [ engineeringtoolbox.com ] shows that the density at 100,000 feet is roughly 1 \ % that of sea level at earth , and from what I remember reading as a kid who thought the SR-71 was just the coolest airplane ever , pilots above 60,000 feet had to wear pressure suits because a simple oxygen mask could n't provide enough pressure to sustain consciousness at those atmospheric pressures .
In other words , Total Recall notwithstanding , humans will not ever be able to breathe the atmosphere unaided on a terraformed Mars without some radical genetic engineering .</tokentext>
<sentencetext>I'm with you re: Venus vs. Mars for terraforming.
In addition to all the points you raised, the gravity of Venus is about 90\% that of earth (according to http://astrogeology.usgs.gov/Projects/BrowseTheSolarSystem/venus.html [usgs.gov]).
Mars' gravity is approximately 1/3 that of earth.
This is important because less gravity == less atmospheric pressure on the surface of the planet.
Consequently, the density of the Martian atmosphere is 1\% that of earth [starryskies.com].
That's really freaking thin, even if you are trying to breathe pure oxygen.
This site [engineeringtoolbox.com] shows that the density at 100,000 feet is roughly 1\% that of sea level at earth, and from what I remember reading as a kid who thought the SR-71 was just the coolest airplane ever, pilots above 60,000 feet had to wear pressure suits because a simple oxygen mask couldn't provide enough pressure to sustain consciousness at those atmospheric pressures.
In other words, Total Recall notwithstanding, humans will not ever be able to breathe the atmosphere unaided on a terraformed Mars without some radical genetic engineering.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31023986</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31025962</id>
	<title>Re:Mars</title>
	<author>ianezz</author>
	<datestamp>1265317080000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext><blockquote><div><p>Given the growth rate of a variety of micro organisms and small less complicated plant life we can induce a massive change in Mar's ecosystem in a short amount of time.</p></div></blockquote><p>True, but the resulting ecosystem is not necessarily stable and self-sustaining. As fast as it builds up, it could suddenly collapse.</p></div>
	</htmltext>
<tokenext>Given the growth rate of a variety of micro organisms and small less complicated plant life we can induce a massive change in Mar 's ecosystem in a short amount of time.True , but the resulting ecosystem is not necessarily stable and self-sustaining .
As fast as it builds up , it could suddenly collapse .</tokentext>
<sentencetext>Given the growth rate of a variety of micro organisms and small less complicated plant life we can induce a massive change in Mar's ecosystem in a short amount of time.True, but the resulting ecosystem is not necessarily stable and self-sustaining.
As fast as it builds up, it could suddenly collapse.
	</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31024362</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31026306</id>
	<title>Re:Of the space variety</title>
	<author>LS</author>
	<datestamp>1265275200000</datestamp>
	<modclass>Funny</modclass>
	<modscore>2</modscore>
	<htmltext><p>* vacuum, vacuum very much! *</p></htmltext>
<tokenext>* vacuum , vacuum very much !
*</tokentext>
<sentencetext>* vacuum, vacuum very much!
*</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31023754</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31026528</id>
	<title>Re:Venus</title>
	<author>Chryana</author>
	<datestamp>1265276100000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext><p>The mean temperature of Venus is around 460C. The atmospheric pressure is 93 times that of earth. While I don't expect to walk on a distant planet in my lifetime, I would certainly hope we would do terraforming so that humands can one day walk on a distant planet, and this pressure is about 50\% higher than the current human tolerance record. There is also no water - and I don't think there is any form of life on earth which can survive without water, at a temperature which will quickly boil any water it might store. As for the distance - who cares if takes a few more months for robotic probes to go to Mars instead of Venus? It's not like it takes more fuel. I don't think your argument to go to Venus instead of Mars makes much sense.</p></htmltext>
<tokenext>The mean temperature of Venus is around 460C .
The atmospheric pressure is 93 times that of earth .
While I do n't expect to walk on a distant planet in my lifetime , I would certainly hope we would do terraforming so that humands can one day walk on a distant planet , and this pressure is about 50 \ % higher than the current human tolerance record .
There is also no water - and I do n't think there is any form of life on earth which can survive without water , at a temperature which will quickly boil any water it might store .
As for the distance - who cares if takes a few more months for robotic probes to go to Mars instead of Venus ?
It 's not like it takes more fuel .
I do n't think your argument to go to Venus instead of Mars makes much sense .</tokentext>
<sentencetext>The mean temperature of Venus is around 460C.
The atmospheric pressure is 93 times that of earth.
While I don't expect to walk on a distant planet in my lifetime, I would certainly hope we would do terraforming so that humands can one day walk on a distant planet, and this pressure is about 50\% higher than the current human tolerance record.
There is also no water - and I don't think there is any form of life on earth which can survive without water, at a temperature which will quickly boil any water it might store.
As for the distance - who cares if takes a few more months for robotic probes to go to Mars instead of Venus?
It's not like it takes more fuel.
I don't think your argument to go to Venus instead of Mars makes much sense.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31023986</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31024438</id>
	<title>Re:fuck they gonna get cosmic ray powerz</title>
	<author>biryokumaru</author>
	<datestamp>1265308920000</datestamp>
	<modclass>Funny</modclass>
	<modscore>4</modscore>
	<htmltext><p><div class="quote"><p>Underworld: Rise of the Lichen</p></div><p>It's funny because you likened the lichen to Lycans.</p></div>
	</htmltext>
<tokenext>Underworld : Rise of the LichenIt 's funny because you likened the lichen to Lycans .</tokentext>
<sentencetext>Underworld: Rise of the LichenIt's funny because you likened the lichen to Lycans.
	</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31023750</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31023974</id>
	<title>Are they sensitive to electromagnetic fields?</title>
	<author>Anonymous</author>
	<datestamp>1265307000000</datestamp>
	<modclass>None</modclass>
	<modscore>0</modscore>
	<htmltext><p>If so, can they establish an internet connection and post on Slashdot? Because that would explain some things.</p></htmltext>
<tokenext>If so , can they establish an internet connection and post on Slashdot ?
Because that would explain some things .</tokentext>
<sentencetext>If so, can they establish an internet connection and post on Slashdot?
Because that would explain some things.</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31024374</id>
	<title>Re:Venus</title>
	<author>ChrisMaple</author>
	<datestamp>1265308740000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext><p>I don't think there's much point to trying to deal with Venus as it is, so the excess atmosphere has got to go.</p><p>Pump the excess atmosphere out into space, or find a way to turn most of it into a stable, innocuous solid or liquid compound. Then deal with the excess solar radiation coming in (Make the planet more reflective? Change the orbit? [please be careful not to disturb Earth's orbit.] Put a shade in orbit around Venus?)</p></htmltext>
<tokenext>I do n't think there 's much point to trying to deal with Venus as it is , so the excess atmosphere has got to go.Pump the excess atmosphere out into space , or find a way to turn most of it into a stable , innocuous solid or liquid compound .
Then deal with the excess solar radiation coming in ( Make the planet more reflective ?
Change the orbit ?
[ please be careful not to disturb Earth 's orbit .
] Put a shade in orbit around Venus ?
)</tokentext>
<sentencetext>I don't think there's much point to trying to deal with Venus as it is, so the excess atmosphere has got to go.Pump the excess atmosphere out into space, or find a way to turn most of it into a stable, innocuous solid or liquid compound.
Then deal with the excess solar radiation coming in (Make the planet more reflective?
Change the orbit?
[please be careful not to disturb Earth's orbit.
] Put a shade in orbit around Venus?
)</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31024106</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31025750</id>
	<title>Are we ready, this time? I sure hope so.</title>
	<author>KlomDark</author>
	<datestamp>1265315940000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext><p>But I'm not too sure. We are still pretty uncivilized. Maybe a few more trips through the <a href="http://messagebase.net:8081/MessageBase/ReadMessage.aspx?MsgNum=2383" title="messagebase.net">great red filter</a> [messagebase.net].</p></htmltext>
<tokenext>But I 'm not too sure .
We are still pretty uncivilized .
Maybe a few more trips through the great red filter [ messagebase.net ] .</tokentext>
<sentencetext>But I'm not too sure.
We are still pretty uncivilized.
Maybe a few more trips through the great red filter [messagebase.net].</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31024664</id>
	<title>Re:Venus</title>
	<author>khallow</author>
	<datestamp>1265310060000</datestamp>
	<modclass>Interestin</modclass>
	<modscore>2</modscore>
	<htmltext><p><div class="quote"><p>I don't understand what the obsession with going to Mars is.</p></div><p>Mars has ground. It's really that simple. Look at all of the things on Earth either built on the ground or made of stuff obtained from the ground. In comparison, there is nothing permanently in the sky on Earth. That situation would have to be reversed on Venus. You'd have to make almost everything out of the Venus atmosphere (that yields carbon, oxygen, sulfur, and nitrogen). Maybe you could run some sort of quick mining trips on the surface using balloons or harvest dust blown from the surface (it should be able to reach the 1 atmosphere platform). That might get you other materials like silicon, aluminum, and a bit of iron. Anything you can't get locally, you need to bring from elsewhere.<br> <br>

Don't get me wrong, I used to work for the only organization I know of (<a href="http://www.jpaerospace.com/" title="jpaerospace.com">JP Aerospace</a> [jpaerospace.com]) that has ever seriously proposed a permanent structure in the sky. Their "Dark Sky Station", which floats around 100 km high (at the very limits of the buoyant part of our atmosphere), is intended as a waystation for <a href="http://www.jpaerospace.com/atohandout.pdf" title="jpaerospace.com">Airship to Orbit</a> [jpaerospace.com]. If NASA did suddenly propose to colonize Venus, JP Aerospace would be well positioned to take advantage of that impulse.<br> <br>

But it's a very hard problem that probably won't be solved by the time Mars is colonized. I imagine Ceres, which has no atmosphere at all and a very weak 0.03 G gravity, would be colonized before Venus.</p></div>
	</htmltext>
<tokenext>I do n't understand what the obsession with going to Mars is.Mars has ground .
It 's really that simple .
Look at all of the things on Earth either built on the ground or made of stuff obtained from the ground .
In comparison , there is nothing permanently in the sky on Earth .
That situation would have to be reversed on Venus .
You 'd have to make almost everything out of the Venus atmosphere ( that yields carbon , oxygen , sulfur , and nitrogen ) .
Maybe you could run some sort of quick mining trips on the surface using balloons or harvest dust blown from the surface ( it should be able to reach the 1 atmosphere platform ) .
That might get you other materials like silicon , aluminum , and a bit of iron .
Anything you ca n't get locally , you need to bring from elsewhere .
Do n't get me wrong , I used to work for the only organization I know of ( JP Aerospace [ jpaerospace.com ] ) that has ever seriously proposed a permanent structure in the sky .
Their " Dark Sky Station " , which floats around 100 km high ( at the very limits of the buoyant part of our atmosphere ) , is intended as a waystation for Airship to Orbit [ jpaerospace.com ] .
If NASA did suddenly propose to colonize Venus , JP Aerospace would be well positioned to take advantage of that impulse .
But it 's a very hard problem that probably wo n't be solved by the time Mars is colonized .
I imagine Ceres , which has no atmosphere at all and a very weak 0.03 G gravity , would be colonized before Venus .</tokentext>
<sentencetext>I don't understand what the obsession with going to Mars is.Mars has ground.
It's really that simple.
Look at all of the things on Earth either built on the ground or made of stuff obtained from the ground.
In comparison, there is nothing permanently in the sky on Earth.
That situation would have to be reversed on Venus.
You'd have to make almost everything out of the Venus atmosphere (that yields carbon, oxygen, sulfur, and nitrogen).
Maybe you could run some sort of quick mining trips on the surface using balloons or harvest dust blown from the surface (it should be able to reach the 1 atmosphere platform).
That might get you other materials like silicon, aluminum, and a bit of iron.
Anything you can't get locally, you need to bring from elsewhere.
Don't get me wrong, I used to work for the only organization I know of (JP Aerospace [jpaerospace.com]) that has ever seriously proposed a permanent structure in the sky.
Their "Dark Sky Station", which floats around 100 km high (at the very limits of the buoyant part of our atmosphere), is intended as a waystation for Airship to Orbit [jpaerospace.com].
If NASA did suddenly propose to colonize Venus, JP Aerospace would be well positioned to take advantage of that impulse.
But it's a very hard problem that probably won't be solved by the time Mars is colonized.
I imagine Ceres, which has no atmosphere at all and a very weak 0.03 G gravity, would be colonized before Venus.
	</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31023986</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31024912</id>
	<title>Re:Mars</title>
	<author>SnarfQuest</author>
	<datestamp>1265311200000</datestamp>
	<modclass>Funny</modclass>
	<modscore>1</modscore>
	<htmltext><p><div class="quote"><p>The real goal of this research is to understand the limits to life in extreme environments.</p></div><p>Next test coming up: kittens and puppies. How well do they do in a vaccuum?</p></div>
	</htmltext>
<tokenext>The real goal of this research is to understand the limits to life in extreme environments.Next test coming up : kittens and puppies .
How well do they do in a vaccuum ?</tokentext>
<sentencetext>The real goal of this research is to understand the limits to life in extreme environments.Next test coming up: kittens and puppies.
How well do they do in a vaccuum?
	</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31023770</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31023754</id>
	<title>Of the space variety</title>
	<author>PlasmaEye</author>
	<datestamp>1265305860000</datestamp>
	<modclass>Funny</modclass>
	<modscore>5</modscore>
	<htmltext>I guess you could say that fungus was lichen space.

*crickets*</htmltext>
<tokenext>I guess you could say that fungus was lichen space .
* crickets *</tokentext>
<sentencetext>I guess you could say that fungus was lichen space.
*crickets*</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31024306</id>
	<title>Re:Venus</title>
	<author>Anonymous</author>
	<datestamp>1265308500000</datestamp>
	<modclass>None</modclass>
	<modscore>0</modscore>
	<htmltext>So we just need to move it to a different orbit and siphon off some of the atmosphere? Maybe take that excess atmosphere to Mars and move Mars to a closer orbit? We could make our own "counter earth" (from John Norman's Gor series).</htmltext>
<tokenext>So we just need to move it to a different orbit and siphon off some of the atmosphere ?
Maybe take that excess atmosphere to Mars and move Mars to a closer orbit ?
We could make our own " counter earth " ( from John Norman 's Gor series ) .</tokentext>
<sentencetext>So we just need to move it to a different orbit and siphon off some of the atmosphere?
Maybe take that excess atmosphere to Mars and move Mars to a closer orbit?
We could make our own "counter earth" (from John Norman's Gor series).</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31024132</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31024648</id>
	<title>Re:Mars</title>
	<author>eleuthero</author>
	<datestamp>1265309940000</datestamp>
	<modclass>Funny</modclass>
	<modscore>2</modscore>
	<htmltext>I'd like to see them just seed Mars with the lichen now. If it turns out to be problematic, it isn't like it is our own planet (or like it even has life to speak of that we need be concerned about). Put some kudzu cells in the lichen and maybe we can even have Mars go all greenfly on us and then we can spend more on spaceflight in order to be able to flee the galaxy consuming super-lichen</htmltext>
<tokenext>I 'd like to see them just seed Mars with the lichen now .
If it turns out to be problematic , it is n't like it is our own planet ( or like it even has life to speak of that we need be concerned about ) .
Put some kudzu cells in the lichen and maybe we can even have Mars go all greenfly on us and then we can spend more on spaceflight in order to be able to flee the galaxy consuming super-lichen</tokentext>
<sentencetext>I'd like to see them just seed Mars with the lichen now.
If it turns out to be problematic, it isn't like it is our own planet (or like it even has life to speak of that we need be concerned about).
Put some kudzu cells in the lichen and maybe we can even have Mars go all greenfly on us and then we can spend more on spaceflight in order to be able to flee the galaxy consuming super-lichen</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31023770</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31024046</id>
	<title>Rise of the Lichens</title>
	<author>192939495969798999</author>
	<datestamp>1265307300000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext><p>Werewolves are on the ISS?  Sweet!</p></htmltext>
<tokenext>Werewolves are on the ISS ?
Sweet !</tokentext>
<sentencetext>Werewolves are on the ISS?
Sweet!</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31023710</id>
	<title>Let us get this out of the way...</title>
	<author>Anonymous</author>
	<datestamp>1265305680000</datestamp>
	<modclass>Funny</modclass>
	<modscore>5</modscore>
	<htmltext><p>I, for one, welcome our Mars-terraforming lichen overlords.</p></htmltext>
<tokenext>I , for one , welcome our Mars-terraforming lichen overlords .</tokentext>
<sentencetext>I, for one, welcome our Mars-terraforming lichen overlords.</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31023996</id>
	<title>Re:Mars</title>
	<author>TheRealMindChild</author>
	<datestamp>1265307120000</datestamp>
	<modclass>Funny</modclass>
	<modscore>3</modscore>
	<htmltext>Imagine it! A <a href="http://en.wikipedia.org/wiki/Dyson\_sphere" title="wikipedia.org">dyson sphere</a> [wikipedia.org] of <a href="http://en.wikipedia.org/wiki/Kudzu" title="wikipedia.org">kudzu</a> [wikipedia.org]!!!</htmltext>
<tokenext>Imagine it !
A dyson sphere [ wikipedia.org ] of kudzu [ wikipedia.org ] ! !
!</tokentext>
<sentencetext>Imagine it!
A dyson sphere [wikipedia.org] of kudzu [wikipedia.org]!!
!</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31023770</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31031994</id>
	<title>Put a giant Camera filter on it</title>
	<author>Eclipse-now</author>
	<datestamp>1265313180000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext>Would it be possible (given enough time and energy and XYZ magic technobabble) to put a giant Mars sized 'filter' between Mars and the Sun that would let only the **good** light through, cut out the bad radiation, AND stop the solar wind blowing away the atmosphere?<br> <br> I'm no physicist, so I don't know if photons can blow away the atmosphere, but if we prevented the solar wind, surely then gravity would take over and keep the atmosphere in? (If we really wanted to? It would probably be easier just to build our own little ONeil habitats... but there's just something about terraforming another planet as a backup ecosystem... Polar Bears on Mars, now that's conservation!)</htmltext>
<tokenext>Would it be possible ( given enough time and energy and XYZ magic technobabble ) to put a giant Mars sized 'filter ' between Mars and the Sun that would let only the * * good * * light through , cut out the bad radiation , AND stop the solar wind blowing away the atmosphere ?
I 'm no physicist , so I do n't know if photons can blow away the atmosphere , but if we prevented the solar wind , surely then gravity would take over and keep the atmosphere in ?
( If we really wanted to ?
It would probably be easier just to build our own little ONeil habitats... but there 's just something about terraforming another planet as a backup ecosystem... Polar Bears on Mars , now that 's conservation !
)</tokentext>
<sentencetext>Would it be possible (given enough time and energy and XYZ magic technobabble) to put a giant Mars sized 'filter' between Mars and the Sun that would let only the **good** light through, cut out the bad radiation, AND stop the solar wind blowing away the atmosphere?
I'm no physicist, so I don't know if photons can blow away the atmosphere, but if we prevented the solar wind, surely then gravity would take over and keep the atmosphere in?
(If we really wanted to?
It would probably be easier just to build our own little ONeil habitats... but there's just something about terraforming another planet as a backup ecosystem... Polar Bears on Mars, now that's conservation!
)</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31024956</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31024766</id>
	<title>Re:Mars</title>
	<author>Anonymous</author>
	<datestamp>1265310480000</datestamp>
	<modclass>Insightful</modclass>
	<modscore>3</modscore>
	<htmltext>On Earth, the Oxygen Cycle is about a million years. Seed Mars with plants, add water, and wait a million years. Presto! Instant oxygen atmosphere.
<p>
Of course, advanced technology might cut that to as little as ten-thousand years . . .
</p><p>
--Greg (Why I lost interest in terraforming)</p></htmltext>
<tokenext>On Earth , the Oxygen Cycle is about a million years .
Seed Mars with plants , add water , and wait a million years .
Presto ! Instant oxygen atmosphere .
Of course , advanced technology might cut that to as little as ten-thousand years .
. .
--Greg ( Why I lost interest in terraforming )</tokentext>
<sentencetext>On Earth, the Oxygen Cycle is about a million years.
Seed Mars with plants, add water, and wait a million years.
Presto! Instant oxygen atmosphere.
Of course, advanced technology might cut that to as little as ten-thousand years .
. .
--Greg (Why I lost interest in terraforming)</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31024362</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31025412</id>
	<title>Re:Mars</title>
	<author>Anonymous</author>
	<datestamp>1265313720000</datestamp>
	<modclass>None</modclass>
	<modscore>0</modscore>
	<htmltext><p>mars has no ionosphere, and we have no way of reactivating its molten core. mars will never be terraformed.</p></htmltext>
<tokenext>mars has no ionosphere , and we have no way of reactivating its molten core .
mars will never be terraformed .</tokentext>
<sentencetext>mars has no ionosphere, and we have no way of reactivating its molten core.
mars will never be terraformed.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31024362</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31024194</id>
	<title>Re:Venus</title>
	<author>r\_jensen11</author>
	<datestamp>1265308020000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext><p><div class="quote"><p>I don't understand what the obsession with going to Mars is. Frankly I think Venus is where we should target our efforts. It has an atmosphere (albeit hazardous to human life) and is about 20\% closer to us then Mars. Granted, Venus' atmosphere is about 97\% CO2 but I would think that it would be a lot easier to bioengineer something which would survive and thrive in the Venutian atmosphere while changing the CO2 to Oxygen.</p></div><p>Probably something to do with Venus's high temperatures and high air pressure.</p><p><a href="http://wind.cc.whecn.edu/~marquard/astronomy/mercury\_and\_venus.htm" title="whecn.edu">"In fact, atmospheric pressure on Venus is about 90 times the atmospheric pressure on the Earth. This would be comparable to water pressure 1000 meters below the surface of the ocean."</a> [whecn.edu]</p></div>
	</htmltext>
<tokenext>I do n't understand what the obsession with going to Mars is .
Frankly I think Venus is where we should target our efforts .
It has an atmosphere ( albeit hazardous to human life ) and is about 20 \ % closer to us then Mars .
Granted , Venus ' atmosphere is about 97 \ % CO2 but I would think that it would be a lot easier to bioengineer something which would survive and thrive in the Venutian atmosphere while changing the CO2 to Oxygen.Probably something to do with Venus 's high temperatures and high air pressure .
" In fact , atmospheric pressure on Venus is about 90 times the atmospheric pressure on the Earth .
This would be comparable to water pressure 1000 meters below the surface of the ocean .
" [ whecn.edu ]</tokentext>
<sentencetext>I don't understand what the obsession with going to Mars is.
Frankly I think Venus is where we should target our efforts.
It has an atmosphere (albeit hazardous to human life) and is about 20\% closer to us then Mars.
Granted, Venus' atmosphere is about 97\% CO2 but I would think that it would be a lot easier to bioengineer something which would survive and thrive in the Venutian atmosphere while changing the CO2 to Oxygen.Probably something to do with Venus's high temperatures and high air pressure.
"In fact, atmospheric pressure on Venus is about 90 times the atmospheric pressure on the Earth.
This would be comparable to water pressure 1000 meters below the surface of the ocean.
" [whecn.edu]
	</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31023986</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31024820</id>
	<title>Re:Venus</title>
	<author>Anonymous</author>
	<datestamp>1265310780000</datestamp>
	<modclass>Interestin</modclass>
	<modscore>3</modscore>
	<htmltext><p>There are already organisms that are adapted to this kind of extreme; they are right here on earth.</p><p>Take for instance, the chemotrophic marine organisms near deep-sea trenches and vents. Specifically, the sulfur reducing varieties.</p><p>http://en.wikipedia.org/wiki/Sulfate-reducing\_bacteria</p><p>The hard part is getting them to stay afloat in the lighter part of the atmosphere, in or above the sulfuric acid haze, where the temperature and pressure are more conducive to their habitation.</p><p>http://www.daviddarling.info/encyclopedia/V/Venusatmos.html</p><p>If you couple this with some chemo-lithotropes, like purple sulfur bacteria, (or organisms engineered to use this pathway), then a stable sulfur cycle could be initiated in the upper venusian atmosphere.</p><p>What would likely work best, would be to collect atmospheric bacteria from earths upper atmosphere (Yes, germs do live up there. http://www.lbl.gov/Science-Articles/Archive/ESD-air-bacteria.html), and perform genetic augmentation on them to introduce the required traits for venusian habitation.</p><p>Once you have carbon fixing organisms floating freely in the atmosphere, you can introduce other organisms that produce heat-stable precipitates, that live by ingesting the former.</p><p>Such precipitates might be carbon nanotubes, which would be stable in the venusian atmosphere below the sulfur haze zone, which would be low enough in the atmosphere before being rarified back into carbon dioxide that it could effectively put a pinhole in venus's runaway greenhouse effect, and as the surface temperature slowly falls, might allow carbon "snow" to deposit over time.</p><p>It would take geological time for this to happen, but if you could retard the greenhouse effect sufficiently, it would eventually happen.</p></htmltext>
<tokenext>There are already organisms that are adapted to this kind of extreme ; they are right here on earth.Take for instance , the chemotrophic marine organisms near deep-sea trenches and vents .
Specifically , the sulfur reducing varieties.http : //en.wikipedia.org/wiki/Sulfate-reducing \ _bacteriaThe hard part is getting them to stay afloat in the lighter part of the atmosphere , in or above the sulfuric acid haze , where the temperature and pressure are more conducive to their habitation.http : //www.daviddarling.info/encyclopedia/V/Venusatmos.htmlIf you couple this with some chemo-lithotropes , like purple sulfur bacteria , ( or organisms engineered to use this pathway ) , then a stable sulfur cycle could be initiated in the upper venusian atmosphere.What would likely work best , would be to collect atmospheric bacteria from earths upper atmosphere ( Yes , germs do live up there .
http : //www.lbl.gov/Science-Articles/Archive/ESD-air-bacteria.html ) , and perform genetic augmentation on them to introduce the required traits for venusian habitation.Once you have carbon fixing organisms floating freely in the atmosphere , you can introduce other organisms that produce heat-stable precipitates , that live by ingesting the former.Such precipitates might be carbon nanotubes , which would be stable in the venusian atmosphere below the sulfur haze zone , which would be low enough in the atmosphere before being rarified back into carbon dioxide that it could effectively put a pinhole in venus 's runaway greenhouse effect , and as the surface temperature slowly falls , might allow carbon " snow " to deposit over time.It would take geological time for this to happen , but if you could retard the greenhouse effect sufficiently , it would eventually happen .</tokentext>
<sentencetext>There are already organisms that are adapted to this kind of extreme; they are right here on earth.Take for instance, the chemotrophic marine organisms near deep-sea trenches and vents.
Specifically, the sulfur reducing varieties.http://en.wikipedia.org/wiki/Sulfate-reducing\_bacteriaThe hard part is getting them to stay afloat in the lighter part of the atmosphere, in or above the sulfuric acid haze, where the temperature and pressure are more conducive to their habitation.http://www.daviddarling.info/encyclopedia/V/Venusatmos.htmlIf you couple this with some chemo-lithotropes, like purple sulfur bacteria, (or organisms engineered to use this pathway), then a stable sulfur cycle could be initiated in the upper venusian atmosphere.What would likely work best, would be to collect atmospheric bacteria from earths upper atmosphere (Yes, germs do live up there.
http://www.lbl.gov/Science-Articles/Archive/ESD-air-bacteria.html), and perform genetic augmentation on them to introduce the required traits for venusian habitation.Once you have carbon fixing organisms floating freely in the atmosphere, you can introduce other organisms that produce heat-stable precipitates, that live by ingesting the former.Such precipitates might be carbon nanotubes, which would be stable in the venusian atmosphere below the sulfur haze zone, which would be low enough in the atmosphere before being rarified back into carbon dioxide that it could effectively put a pinhole in venus's runaway greenhouse effect, and as the surface temperature slowly falls, might allow carbon "snow" to deposit over time.It would take geological time for this to happen, but if you could retard the greenhouse effect sufficiently, it would eventually happen.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31024106</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31024102</id>
	<title>Re:Venus</title>
	<author>Bardez</author>
	<datestamp>1265307600000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext>This reminds me of a report we had to do in sixth grade. Everyone was talking about Mars and I was one of maybe two that thought that Venus, with its C02 atmosphere and near-Earth size made it more desirable to terraform. Of course, my solution to send a (bio)dome with an ass load of A/C units filled with plant life probably wouldn't quite solve the problem.</htmltext>
<tokenext>This reminds me of a report we had to do in sixth grade .
Everyone was talking about Mars and I was one of maybe two that thought that Venus , with its C02 atmosphere and near-Earth size made it more desirable to terraform .
Of course , my solution to send a ( bio ) dome with an ass load of A/C units filled with plant life probably would n't quite solve the problem .</tokentext>
<sentencetext>This reminds me of a report we had to do in sixth grade.
Everyone was talking about Mars and I was one of maybe two that thought that Venus, with its C02 atmosphere and near-Earth size made it more desirable to terraform.
Of course, my solution to send a (bio)dome with an ass load of A/C units filled with plant life probably wouldn't quite solve the problem.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31023986</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31023986</id>
	<title>Venus</title>
	<author>Anonymous</author>
	<datestamp>1265307060000</datestamp>
	<modclass>Interestin</modclass>
	<modscore>5</modscore>
	<htmltext>I don't understand what the obsession with going to Mars is. Frankly I think Venus is where we should target our efforts. It has an atmosphere (albeit hazardous to human life) and is about 20\% closer to us then Mars. Granted, Venus' atmosphere is about 97\% CO2 but I would think that it would be a lot easier to bioengineer something which would survive and thrive in the Venutian atmosphere while changing the CO2 to Oxygen.</htmltext>
<tokenext>I do n't understand what the obsession with going to Mars is .
Frankly I think Venus is where we should target our efforts .
It has an atmosphere ( albeit hazardous to human life ) and is about 20 \ % closer to us then Mars .
Granted , Venus ' atmosphere is about 97 \ % CO2 but I would think that it would be a lot easier to bioengineer something which would survive and thrive in the Venutian atmosphere while changing the CO2 to Oxygen .</tokentext>
<sentencetext>I don't understand what the obsession with going to Mars is.
Frankly I think Venus is where we should target our efforts.
It has an atmosphere (albeit hazardous to human life) and is about 20\% closer to us then Mars.
Granted, Venus' atmosphere is about 97\% CO2 but I would think that it would be a lot easier to bioengineer something which would survive and thrive in the Venutian atmosphere while changing the CO2 to Oxygen.</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31024716</id>
	<title>Sure it'll take ages, so start now.</title>
	<author>Colin Smith</author>
	<datestamp>1265310300000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext><p>But if we start now, maybe by the time we get there, earth based life will be well established.<br>
&nbsp;</p></htmltext>
<tokenext>But if we start now , maybe by the time we get there , earth based life will be well established .
 </tokentext>
<sentencetext>But if we start now, maybe by the time we get there, earth based life will be well established.
 </sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31023770</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31024274</id>
	<title>Pun in 3, 2, 1...</title>
	<author>Logical Zebra</author>
	<datestamp>1265308380000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext>That moss has taken a lichen to that space station!</htmltext>
<tokenext>That moss has taken a lichen to that space station !</tokentext>
<sentencetext>That moss has taken a lichen to that space station!</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31024328</id>
	<title>Re:Venus</title>
	<author>Teun</author>
	<datestamp>1265308620000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext>The 20\% distance advantage of Venus vs. Mars is nothing compared to the problems caused by the Vesuvian atmospheric CO2, pressure and temperature that are all way beyond what we and our technology are used to.<p>Although we've here on earth found some extremophile life forms that survive or even thrive at temperatures and pressure encountered on Venus but nearly all (simple) living organisms we know could cope with Martian conditions.</p><p>I would say it's not difficult to see the low hanging fruit.</p></htmltext>
<tokenext>The 20 \ % distance advantage of Venus vs. Mars is nothing compared to the problems caused by the Vesuvian atmospheric CO2 , pressure and temperature that are all way beyond what we and our technology are used to.Although we 've here on earth found some extremophile life forms that survive or even thrive at temperatures and pressure encountered on Venus but nearly all ( simple ) living organisms we know could cope with Martian conditions.I would say it 's not difficult to see the low hanging fruit .</tokentext>
<sentencetext>The 20\% distance advantage of Venus vs. Mars is nothing compared to the problems caused by the Vesuvian atmospheric CO2, pressure and temperature that are all way beyond what we and our technology are used to.Although we've here on earth found some extremophile life forms that survive or even thrive at temperatures and pressure encountered on Venus but nearly all (simple) living organisms we know could cope with Martian conditions.I would say it's not difficult to see the low hanging fruit.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31023986</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31024250</id>
	<title>Descolada</title>
	<author>Anonymous</author>
	<datestamp>1265308320000</datestamp>
	<modclass>None</modclass>
	<modscore>0</modscore>
	<htmltext><p>Just use the descolada to terraform it.  Works like a charm.</p></htmltext>
<tokenext>Just use the descolada to terraform it .
Works like a charm .</tokentext>
<sentencetext>Just use the descolada to terraform it.
Works like a charm.</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31032490</id>
	<title>Re:Mars</title>
	<author>Xest</author>
	<datestamp>1265363760000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext><p>"Obviously there are a multitude of inhibitors to such growth but"</p><p>There isn't really a but, because this is the core problem. Those inhibitors include water, carbon dioxide, nitrogen for example.</p><p>Even if we do (have?) found water on mars it doesn't cover the entire planet. Simply adding lichen to those areas isn't enough to generate rain clouds that would help it spread across the whole planet. Similarly areas with water will quite possibly not be able to provide enough of the other requirements needed.</p><p>This is why the discovery of water is fundamental, because you really have to start work on those areas first, and figure out then how you're going to make those areas spread, or somehow generate more water.</p><p>There are indeed plenty of lichen that can survive extreme temperatures as in TFA- I remember when crossing Argentina to Chile via the Andes there were vast areas where there appeared to be no life whatsoever apart from the odd guanaco running around (god knows how they survive- brave bastards!), however a closer inspection of rocks up there showed lichen could at least survive. It's probably also worth noting that even some of Earth's newer species of plant, such as the cactus Opuntia compressa or various members of the genus Escobaria have been found hardy down to -120c in the lab (Mars ranges from -123c to +36c). If these can similarly survive the other pressures, then they might in many ways be better candidates in terms of spread (they can survive years between getting water), or ideally, just part of a mix of a combination of plant/fungus species.</p><p>But still, those inhibitors to growth aren't just inhibitors, but complete barriers for the most part. They are problems that really must be solved first.</p></htmltext>
<tokenext>" Obviously there are a multitude of inhibitors to such growth but " There is n't really a but , because this is the core problem .
Those inhibitors include water , carbon dioxide , nitrogen for example.Even if we do ( have ?
) found water on mars it does n't cover the entire planet .
Simply adding lichen to those areas is n't enough to generate rain clouds that would help it spread across the whole planet .
Similarly areas with water will quite possibly not be able to provide enough of the other requirements needed.This is why the discovery of water is fundamental , because you really have to start work on those areas first , and figure out then how you 're going to make those areas spread , or somehow generate more water.There are indeed plenty of lichen that can survive extreme temperatures as in TFA- I remember when crossing Argentina to Chile via the Andes there were vast areas where there appeared to be no life whatsoever apart from the odd guanaco running around ( god knows how they survive- brave bastards !
) , however a closer inspection of rocks up there showed lichen could at least survive .
It 's probably also worth noting that even some of Earth 's newer species of plant , such as the cactus Opuntia compressa or various members of the genus Escobaria have been found hardy down to -120c in the lab ( Mars ranges from -123c to + 36c ) .
If these can similarly survive the other pressures , then they might in many ways be better candidates in terms of spread ( they can survive years between getting water ) , or ideally , just part of a mix of a combination of plant/fungus species.But still , those inhibitors to growth are n't just inhibitors , but complete barriers for the most part .
They are problems that really must be solved first .</tokentext>
<sentencetext>"Obviously there are a multitude of inhibitors to such growth but"There isn't really a but, because this is the core problem.
Those inhibitors include water, carbon dioxide, nitrogen for example.Even if we do (have?
) found water on mars it doesn't cover the entire planet.
Simply adding lichen to those areas isn't enough to generate rain clouds that would help it spread across the whole planet.
Similarly areas with water will quite possibly not be able to provide enough of the other requirements needed.This is why the discovery of water is fundamental, because you really have to start work on those areas first, and figure out then how you're going to make those areas spread, or somehow generate more water.There are indeed plenty of lichen that can survive extreme temperatures as in TFA- I remember when crossing Argentina to Chile via the Andes there were vast areas where there appeared to be no life whatsoever apart from the odd guanaco running around (god knows how they survive- brave bastards!
), however a closer inspection of rocks up there showed lichen could at least survive.
It's probably also worth noting that even some of Earth's newer species of plant, such as the cactus Opuntia compressa or various members of the genus Escobaria have been found hardy down to -120c in the lab (Mars ranges from -123c to +36c).
If these can similarly survive the other pressures, then they might in many ways be better candidates in terms of spread (they can survive years between getting water), or ideally, just part of a mix of a combination of plant/fungus species.But still, those inhibitors to growth aren't just inhibitors, but complete barriers for the most part.
They are problems that really must be solved first.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31024362</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31026012</id>
	<title>Re:Venus</title>
	<author>hey!</author>
	<datestamp>1265274060000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext><p>I shouldn't think that too difficult.</p><p>There have been bacteria recovered from deep rock cores that survive under high pressure, low energy environment by carrying out their biological processes very, very slowly.  Other bacteria have been found that can survive the near boiling temperatures of thermal springs.</p><p>In fact, bacteria that are adapted to live in the supercritical water of deep ocean thermal vents would be a great start.  We're talking 400 degrees C, but still liquid because of the immense pressure.  Right there you're in the ballpark.</p><p>Bacteria recovered from the Mariana Trench grow fine at pressures of 75 MPa.</p><p>The real problem is the lack of hydrogen for biological reactions.  That's a limiting factor.</p></htmltext>
<tokenext>I should n't think that too difficult.There have been bacteria recovered from deep rock cores that survive under high pressure , low energy environment by carrying out their biological processes very , very slowly .
Other bacteria have been found that can survive the near boiling temperatures of thermal springs.In fact , bacteria that are adapted to live in the supercritical water of deep ocean thermal vents would be a great start .
We 're talking 400 degrees C , but still liquid because of the immense pressure .
Right there you 're in the ballpark.Bacteria recovered from the Mariana Trench grow fine at pressures of 75 MPa.The real problem is the lack of hydrogen for biological reactions .
That 's a limiting factor .</tokentext>
<sentencetext>I shouldn't think that too difficult.There have been bacteria recovered from deep rock cores that survive under high pressure, low energy environment by carrying out their biological processes very, very slowly.
Other bacteria have been found that can survive the near boiling temperatures of thermal springs.In fact, bacteria that are adapted to live in the supercritical water of deep ocean thermal vents would be a great start.
We're talking 400 degrees C, but still liquid because of the immense pressure.
Right there you're in the ballpark.Bacteria recovered from the Mariana Trench grow fine at pressures of 75 MPa.The real problem is the lack of hydrogen for biological reactions.
That's a limiting factor.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31024106</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31031012</id>
	<title>Re:Mars</title>
	<author>Nazlfrag</author>
	<datestamp>1265304420000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext><p>RTFA. They simulated martian conditions, and also exposed them to the raw vaccuum. Even TFS mentions the large temperature variations they were exposed to. Your points are all sound and reason for concern but it does seem life can overcome those obstacles. We may not end up with a human habitable world but we would be closer.</p></htmltext>
<tokenext>RTFA .
They simulated martian conditions , and also exposed them to the raw vaccuum .
Even TFS mentions the large temperature variations they were exposed to .
Your points are all sound and reason for concern but it does seem life can overcome those obstacles .
We may not end up with a human habitable world but we would be closer .</tokentext>
<sentencetext>RTFA.
They simulated martian conditions, and also exposed them to the raw vaccuum.
Even TFS mentions the large temperature variations they were exposed to.
Your points are all sound and reason for concern but it does seem life can overcome those obstacles.
We may not end up with a human habitable world but we would be closer.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31024956</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31024264</id>
	<title>Re:Venus</title>
	<author>DerekLyons</author>
	<datestamp>1265308320000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext><blockquote><div><p>I don't understand what the obsession with going to Mars is. Frankly I think Venus is where we should target our efforts. It has an atmosphere (albeit hazardous to human life) and is about 20\% closer to us then Mars.</p></div></blockquote><p>Well, there are three reasons for the 'obsession' with Mars.</p><ol> <li>Man has historically been more interested in Mars than Venus.</li><li>We can actually reasonably reach the Martian surface with both unmanned and [eventually] manned probes.</li><li>Mars is actually 'closer' than Venus.  It's not absolute distance that matters in space travel, but relative velocity.  Not only is Venus 'faster' than Mars, it's also closer to the sun which means we actually have to shed energy to reach it.  This is harder and takes more fuel than sending the equivalent probe to Mars.</li></ol></div>
	</htmltext>
<tokenext>I do n't understand what the obsession with going to Mars is .
Frankly I think Venus is where we should target our efforts .
It has an atmosphere ( albeit hazardous to human life ) and is about 20 \ % closer to us then Mars.Well , there are three reasons for the 'obsession ' with Mars .
Man has historically been more interested in Mars than Venus.We can actually reasonably reach the Martian surface with both unmanned and [ eventually ] manned probes.Mars is actually 'closer ' than Venus .
It 's not absolute distance that matters in space travel , but relative velocity .
Not only is Venus 'faster ' than Mars , it 's also closer to the sun which means we actually have to shed energy to reach it .
This is harder and takes more fuel than sending the equivalent probe to Mars .</tokentext>
<sentencetext>I don't understand what the obsession with going to Mars is.
Frankly I think Venus is where we should target our efforts.
It has an atmosphere (albeit hazardous to human life) and is about 20\% closer to us then Mars.Well, there are three reasons for the 'obsession' with Mars.
Man has historically been more interested in Mars than Venus.We can actually reasonably reach the Martian surface with both unmanned and [eventually] manned probes.Mars is actually 'closer' than Venus.
It's not absolute distance that matters in space travel, but relative velocity.
Not only is Venus 'faster' than Mars, it's also closer to the sun which means we actually have to shed energy to reach it.
This is harder and takes more fuel than sending the equivalent probe to Mars.
	</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31023986</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31023946</id>
	<title>*Shudder* - Open space...?</title>
	<author>Anonymous</author>
	<datestamp>1265306940000</datestamp>
	<modclass>None</modclass>
	<modscore>0</modscore>
	<htmltext><p>I prefer my cubicle surrounded by molten lava in the basement of my nuclear bunker on a desolate island surrounded by thousands of miles of pacific ocean filled with sharks and giant squids.</p></htmltext>
<tokenext>I prefer my cubicle surrounded by molten lava in the basement of my nuclear bunker on a desolate island surrounded by thousands of miles of pacific ocean filled with sharks and giant squids .</tokentext>
<sentencetext>I prefer my cubicle surrounded by molten lava in the basement of my nuclear bunker on a desolate island surrounded by thousands of miles of pacific ocean filled with sharks and giant squids.</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31025172</id>
	<title>Re:Mars</title>
	<author>Anonymous</author>
	<datestamp>1265312340000</datestamp>
	<modclass>None</modclass>
	<modscore>0</modscore>
	<htmltext><p>"The purpose of this isn't really to teraform Mars. That is way too far off in the future."</p><p>You mean "never". We don't even have the energy resources for supersonic passenger travel here on Earth, what makes you think we have the resources to toss gigatons of resources to another planet to terraform it? Put down the sci-fi crack pipe, and crack open a physics book and a calculator, then figure out what the energy needed for terraforming represents in reality; that is, oil. Then, look up how much net-energetic oil we have left. And no, using more energy than what you get back from the oil doesn't count...<br>Oh, and it's "terra"forming, not tera.</p></htmltext>
<tokenext>" The purpose of this is n't really to teraform Mars .
That is way too far off in the future .
" You mean " never " .
We do n't even have the energy resources for supersonic passenger travel here on Earth , what makes you think we have the resources to toss gigatons of resources to another planet to terraform it ?
Put down the sci-fi crack pipe , and crack open a physics book and a calculator , then figure out what the energy needed for terraforming represents in reality ; that is , oil .
Then , look up how much net-energetic oil we have left .
And no , using more energy than what you get back from the oil does n't count...Oh , and it 's " terra " forming , not tera .</tokentext>
<sentencetext>"The purpose of this isn't really to teraform Mars.
That is way too far off in the future.
"You mean "never".
We don't even have the energy resources for supersonic passenger travel here on Earth, what makes you think we have the resources to toss gigatons of resources to another planet to terraform it?
Put down the sci-fi crack pipe, and crack open a physics book and a calculator, then figure out what the energy needed for terraforming represents in reality; that is, oil.
Then, look up how much net-energetic oil we have left.
And no, using more energy than what you get back from the oil doesn't count...Oh, and it's "terra"forming, not tera.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31023770</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31024956</id>
	<title>Re:Mars</title>
	<author>JerryLove</author>
	<datestamp>1265311440000</datestamp>
	<modclass>Interestin</modclass>
	<modscore>4</modscore>
	<htmltext><p>But what will you end up with?</p><p>Mars has no magnetosphere, and plants are not going to add one. Radiation will still hit hard, and air will still be stripped away by the solar winds.</p><p>Mars has little air, and plants don't generally create new air (they pull carbon from existing air), so it will still be airless.</p><p>Given the above, it will also still be freezing (a problem plants will have on Mars that ironically is less of an issue in space, where vacuum is an excellent insulator).</p><p>So how "terraformed" will it be? Though it would be cool to have something living there, even if it's not us.</p></htmltext>
<tokenext>But what will you end up with ? Mars has no magnetosphere , and plants are not going to add one .
Radiation will still hit hard , and air will still be stripped away by the solar winds.Mars has little air , and plants do n't generally create new air ( they pull carbon from existing air ) , so it will still be airless.Given the above , it will also still be freezing ( a problem plants will have on Mars that ironically is less of an issue in space , where vacuum is an excellent insulator ) .So how " terraformed " will it be ?
Though it would be cool to have something living there , even if it 's not us .</tokentext>
<sentencetext>But what will you end up with?Mars has no magnetosphere, and plants are not going to add one.
Radiation will still hit hard, and air will still be stripped away by the solar winds.Mars has little air, and plants don't generally create new air (they pull carbon from existing air), so it will still be airless.Given the above, it will also still be freezing (a problem plants will have on Mars that ironically is less of an issue in space, where vacuum is an excellent insulator).So how "terraformed" will it be?
Though it would be cool to have something living there, even if it's not us.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31024362</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31025550</id>
	<title>Re:Venus</title>
	<author>thepotoo</author>
	<datestamp>1265314440000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext><p>You've got a lot of replies talking about gravity, CO2, magnetospheric issues, etc.</p><p>These problems drop away when you consider <a href="http://en.wikipedia.org/wiki/Colonization\_of\_Venus#Aerostat\_habitats\_and\_floating\_cities" title="wikipedia.org">a floating city</a> [wikipedia.org] (our atmosphere: 70\% N2 / 20\% O2 is a lifting gas on Venus).  Besides the awesome sci-fi factor, we have the technology, almost literally right now, to put something like this together.  Can anyone tell me why it wouldn't work?  (apart from funding problems).</p></htmltext>
<tokenext>You 've got a lot of replies talking about gravity , CO2 , magnetospheric issues , etc.These problems drop away when you consider a floating city [ wikipedia.org ] ( our atmosphere : 70 \ % N2 / 20 \ % O2 is a lifting gas on Venus ) .
Besides the awesome sci-fi factor , we have the technology , almost literally right now , to put something like this together .
Can anyone tell me why it would n't work ?
( apart from funding problems ) .</tokentext>
<sentencetext>You've got a lot of replies talking about gravity, CO2, magnetospheric issues, etc.These problems drop away when you consider a floating city [wikipedia.org] (our atmosphere: 70\% N2 / 20\% O2 is a lifting gas on Venus).
Besides the awesome sci-fi factor, we have the technology, almost literally right now, to put something like this together.
Can anyone tell me why it wouldn't work?
(apart from funding problems).</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31023986</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31024538</id>
	<title>I hope there isn't life on Mars already ..</title>
	<author>Idimmu Xul</author>
	<datestamp>1265309460000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext><p>Because after the first phase of this biological warfare invasion one of us is going to be in big poopoo<nobr> <wbr></nobr>...</p></htmltext>
<tokenext>Because after the first phase of this biological warfare invasion one of us is going to be in big poopoo .. .</tokentext>
<sentencetext>Because after the first phase of this biological warfare invasion one of us is going to be in big poopoo ...</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31024196</id>
	<title>Re:Venus</title>
	<author>Nadaka</author>
	<datestamp>1265308020000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext><p>Venus is also 800 degrees in the shade at a hundred atmospheres of pressure with acid rain that will dissolve most of the materials we make spacecraft out of in a matter of hours.</p><p>Mars also has an atmosphere of mostly CO2, except the temperature, pressure and chemistry is closer to the top of mount everest than the center of an erupting volcano.</p></htmltext>
<tokenext>Venus is also 800 degrees in the shade at a hundred atmospheres of pressure with acid rain that will dissolve most of the materials we make spacecraft out of in a matter of hours.Mars also has an atmosphere of mostly CO2 , except the temperature , pressure and chemistry is closer to the top of mount everest than the center of an erupting volcano .</tokentext>
<sentencetext>Venus is also 800 degrees in the shade at a hundred atmospheres of pressure with acid rain that will dissolve most of the materials we make spacecraft out of in a matter of hours.Mars also has an atmosphere of mostly CO2, except the temperature, pressure and chemistry is closer to the top of mount everest than the center of an erupting volcano.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31023986</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31023828</id>
	<title>It's not open space...</title>
	<author>Lumpy</author>
	<datestamp>1265306340000</datestamp>
	<modclass>Insightful</modclass>
	<modscore>5</modscore>
	<htmltext><p>It's near earth orbit. INSIDE the magnetosphere which removes a huge amount of radiation from the equation.</p><p>Big difference there.</p></htmltext>
<tokenext>It 's near earth orbit .
INSIDE the magnetosphere which removes a huge amount of radiation from the equation.Big difference there .</tokentext>
<sentencetext>It's near earth orbit.
INSIDE the magnetosphere which removes a huge amount of radiation from the equation.Big difference there.</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31023750</id>
	<title>fuck they gonna get cosmic ray powerz</title>
	<author>Anonymous</author>
	<datestamp>1265305800000</datestamp>
	<modclass>Funny</modclass>
	<modscore>4</modscore>
	<htmltext><p>Then come back to earth and take us over. Underworld: Rise of the Lichen. Gonna net to get some space reindeer to save us.</p></htmltext>
<tokenext>Then come back to earth and take us over .
Underworld : Rise of the Lichen .
Gon na net to get some space reindeer to save us .</tokentext>
<sentencetext>Then come back to earth and take us over.
Underworld: Rise of the Lichen.
Gonna net to get some space reindeer to save us.</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31024682</id>
	<title>Grammer nazi's ftw</title>
	<author>Anonymous</author>
	<datestamp>1265310120000</datestamp>
	<modclass>None</modclass>
	<modscore>0</modscore>
	<htmltext><p><div class="quote"><p>Mar's</p></div><p>Mars'</p></div>
	</htmltext>
<tokenext>Mar'sMars '</tokentext>
<sentencetext>Mar'sMars'
	</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31024362</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31025896</id>
	<title>Re:Mars</title>
	<author>drinkypoo</author>
	<datestamp>1265316720000</datestamp>
	<modclass>None</modclass>
	<modscore>0</modscore>
	<htmltext><p><div class="quote"><p>Make the planet into a giant industrial factory where raw pollutants are just dumped out the window. Anything capable of living in that environment would have to thrive on said wastes.</p></div><p>This is obviously false. Mars is a relatively empty environment. It's got wind, salty dust, and a little bit of moisture. Mars' atmosphere: 95.3\% carbon dioxide, 2.7\% nitrogen, and 1.6\% argon, with smaller amounts of oxygen (0.15\%) and water vapor (0.03\%). (etc) Putting a bunch of crap into it would not necessarily assist anything. However, emitting more CO2 would be obviously potentially useful if coupled with carbon-fixing organisms that would release the oxygen.</p></div>
	</htmltext>
<tokenext>Make the planet into a giant industrial factory where raw pollutants are just dumped out the window .
Anything capable of living in that environment would have to thrive on said wastes.This is obviously false .
Mars is a relatively empty environment .
It 's got wind , salty dust , and a little bit of moisture .
Mars ' atmosphere : 95.3 \ % carbon dioxide , 2.7 \ % nitrogen , and 1.6 \ % argon , with smaller amounts of oxygen ( 0.15 \ % ) and water vapor ( 0.03 \ % ) .
( etc ) Putting a bunch of crap into it would not necessarily assist anything .
However , emitting more CO2 would be obviously potentially useful if coupled with carbon-fixing organisms that would release the oxygen .</tokentext>
<sentencetext>Make the planet into a giant industrial factory where raw pollutants are just dumped out the window.
Anything capable of living in that environment would have to thrive on said wastes.This is obviously false.
Mars is a relatively empty environment.
It's got wind, salty dust, and a little bit of moisture.
Mars' atmosphere: 95.3\% carbon dioxide, 2.7\% nitrogen, and 1.6\% argon, with smaller amounts of oxygen (0.15\%) and water vapor (0.03\%).
(etc) Putting a bunch of crap into it would not necessarily assist anything.
However, emitting more CO2 would be obviously potentially useful if coupled with carbon-fixing organisms that would release the oxygen.
	</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31024362</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31025386</id>
	<title>Re:It's not open space...</title>
	<author>jwinster</author>
	<datestamp>1265313600000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext>This whole thing sounds eerily similar to the <a href="http://en.wikipedia.org/wiki/Mars\_trilogy" title="wikipedia.org" rel="nofollow"> Mars trilogy</a> [wikipedia.org] by Kim Stanley Robinson.  Great series if you enjoy SciFi books about Mars terraforming.</htmltext>
<tokenext>This whole thing sounds eerily similar to the Mars trilogy [ wikipedia.org ] by Kim Stanley Robinson .
Great series if you enjoy SciFi books about Mars terraforming .</tokentext>
<sentencetext>This whole thing sounds eerily similar to the  Mars trilogy [wikipedia.org] by Kim Stanley Robinson.
Great series if you enjoy SciFi books about Mars terraforming.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31023828</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31024404</id>
	<title>Re:Venus</title>
	<author>EvilBudMan</author>
	<datestamp>1265308860000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext><p>It's because Mars is the "Red Planet". Don't you see, it's all marketing.</p></htmltext>
<tokenext>It 's because Mars is the " Red Planet " .
Do n't you see , it 's all marketing .</tokentext>
<sentencetext>It's because Mars is the "Red Planet".
Don't you see, it's all marketing.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31023986</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31024098</id>
	<title>Lichen or Lycan?</title>
	<author>Anonymous</author>
	<datestamp>1265307600000</datestamp>
	<modclass>None</modclass>
	<modscore>0</modscore>
	<htmltext><p>Lycans on a Shuttle is the must-see summer blockbuster follow-up to Snakes on a Plain, staring Hugh Jackman and Kate Beckinsale... can the wolverine within overcome werewolves without gravity?</p></htmltext>
<tokenext>Lycans on a Shuttle is the must-see summer blockbuster follow-up to Snakes on a Plain , staring Hugh Jackman and Kate Beckinsale... can the wolverine within overcome werewolves without gravity ?</tokentext>
<sentencetext>Lycans on a Shuttle is the must-see summer blockbuster follow-up to Snakes on a Plain, staring Hugh Jackman and Kate Beckinsale... can the wolverine within overcome werewolves without gravity?</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31025044</id>
	<title>Terraforming Mars? Check out Earth.</title>
	<author>Cr0vv</author>
	<datestamp>1265311800000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext>It's scary to imagine Man doing anything like this beyond where he lives.  For those who think that "we" should terraform a planet, check out your workbench,  or your backyard.  Check the lead levels or pcb's in your drinking water.  Yeah, better work on not killing everything were you live before "we" try to do this. Besides lying NASA can barely get a rocket in the air these days, let alone pay for it.
Crow.</htmltext>
<tokenext>It 's scary to imagine Man doing anything like this beyond where he lives .
For those who think that " we " should terraform a planet , check out your workbench , or your backyard .
Check the lead levels or pcb 's in your drinking water .
Yeah , better work on not killing everything were you live before " we " try to do this .
Besides lying NASA can barely get a rocket in the air these days , let alone pay for it .
Crow .</tokentext>
<sentencetext>It's scary to imagine Man doing anything like this beyond where he lives.
For those who think that "we" should terraform a planet, check out your workbench,  or your backyard.
Check the lead levels or pcb's in your drinking water.
Yeah, better work on not killing everything were you live before "we" try to do this.
Besides lying NASA can barely get a rocket in the air these days, let alone pay for it.
Crow.</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31024426</id>
	<title>The only link to "terraforming Mars":</title>
	<author>Anonymous</author>
	<datestamp>1265308920000</datestamp>
	<modclass>None</modclass>
	<modscore>0</modscore>
	<htmltext><p>TFA: "so perhaps there is also some kind of life on the red surface of Mars"</p><p>What they did was test Earth life in space-like conditions.<br>Interesting, but it's not a terraforming experiment. That word isn't even in the article.</p></htmltext>
<tokenext>TFA : " so perhaps there is also some kind of life on the red surface of Mars " What they did was test Earth life in space-like conditions.Interesting , but it 's not a terraforming experiment .
That word is n't even in the article .</tokentext>
<sentencetext>TFA: "so perhaps there is also some kind of life on the red surface of Mars"What they did was test Earth life in space-like conditions.Interesting, but it's not a terraforming experiment.
That word isn't even in the article.</sentencetext>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31024262</id>
	<title>Re:Venus</title>
	<author>goldaryn</author>
	<datestamp>1265308320000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext><p><div class="quote"><p>And now, thanks to the ISS, we'll have both topping for our pizza and athlete's foot when we get there.</p></div><p>
Next 'pizza' research: exactly what kind of cheese <b>is</b> the Moon made from? This could solve our mozarella shortages. I think we should be told.</p></div>
	</htmltext>
<tokenext>And now , thanks to the ISS , we 'll have both topping for our pizza and athlete 's foot when we get there .
Next 'pizza ' research : exactly what kind of cheese is the Moon made from ?
This could solve our mozarella shortages .
I think we should be told .</tokentext>
<sentencetext>And now, thanks to the ISS, we'll have both topping for our pizza and athlete's foot when we get there.
Next 'pizza' research: exactly what kind of cheese is the Moon made from?
This could solve our mozarella shortages.
I think we should be told.
	</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31024088</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31024074</id>
	<title>Re:Venus</title>
	<author>MachDelta</author>
	<datestamp>1265307480000</datestamp>
	<modclass>Funny</modclass>
	<modscore>3</modscore>
	<htmltext><p>Why go to venus when we can simply terraform earth to have a venus-like atmosphere? We're already well on our way! Mars is a much better place to escape to... I mean, investigate.</p></htmltext>
<tokenext>Why go to venus when we can simply terraform earth to have a venus-like atmosphere ?
We 're already well on our way !
Mars is a much better place to escape to... I mean , investigate .</tokentext>
<sentencetext>Why go to venus when we can simply terraform earth to have a venus-like atmosphere?
We're already well on our way!
Mars is a much better place to escape to... I mean, investigate.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31023986</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31024088</id>
	<title>Re:Venus</title>
	<author>TheDarkMinstrel</author>
	<datestamp>1265307540000</datestamp>
	<modclass>Funny</modclass>
	<modscore>2</modscore>
	<htmltext>Men are running the program - we just want to go home! We're from Mars, ya know?<br>
<br>
And now, thanks to the ISS, we'll have both topping for our pizza and athlete's foot when we get there.</htmltext>
<tokenext>Men are running the program - we just want to go home !
We 're from Mars , ya know ?
And now , thanks to the ISS , we 'll have both topping for our pizza and athlete 's foot when we get there .</tokentext>
<sentencetext>Men are running the program - we just want to go home!
We're from Mars, ya know?
And now, thanks to the ISS, we'll have both topping for our pizza and athlete's foot when we get there.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31023986</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31025184</id>
	<title>Re:Venus</title>
	<author>Anonymous</author>
	<datestamp>1265312400000</datestamp>
	<modclass>None</modclass>
	<modscore>0</modscore>
	<htmltext><p>The main problem with Venus is not the extreme temperature, pressure, or atmospheric composition--these are all theoretically alterable through terraforming efforts (thought still well beyond our present capability). The real problem is that the mean solar day on Venus is 116 Earth days. I don't see how one could maintain a stable terran climate on such a world. And altering that property is out of the question (the energy/time required is so high that one would probably be better off building a Dyson sphere or something).</p></htmltext>
<tokenext>The main problem with Venus is not the extreme temperature , pressure , or atmospheric composition--these are all theoretically alterable through terraforming efforts ( thought still well beyond our present capability ) .
The real problem is that the mean solar day on Venus is 116 Earth days .
I do n't see how one could maintain a stable terran climate on such a world .
And altering that property is out of the question ( the energy/time required is so high that one would probably be better off building a Dyson sphere or something ) .</tokentext>
<sentencetext>The main problem with Venus is not the extreme temperature, pressure, or atmospheric composition--these are all theoretically alterable through terraforming efforts (thought still well beyond our present capability).
The real problem is that the mean solar day on Venus is 116 Earth days.
I don't see how one could maintain a stable terran climate on such a world.
And altering that property is out of the question (the energy/time required is so high that one would probably be better off building a Dyson sphere or something).</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31023986</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31024646</id>
	<title>Re:Mars</title>
	<author>Anonymous</author>
	<datestamp>1265309940000</datestamp>
	<modclass>None</modclass>
	<modscore>0</modscore>
	<htmltext><p>It could also help us creating (more) Self-sufficient space stations. Having lichens and other photosynthetic stuff in cheap inflatable modules that have just enough protection for the lichens to do its job.</p></htmltext>
<tokenext>It could also help us creating ( more ) Self-sufficient space stations .
Having lichens and other photosynthetic stuff in cheap inflatable modules that have just enough protection for the lichens to do its job .</tokentext>
<sentencetext>It could also help us creating (more) Self-sufficient space stations.
Having lichens and other photosynthetic stuff in cheap inflatable modules that have just enough protection for the lichens to do its job.</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31023770</parent>
</comment>
<comment>
	<id>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31024172</id>
	<title>Re:Venus</title>
	<author>holmstar</author>
	<datestamp>1265307900000</datestamp>
	<modclass>None</modclass>
	<modscore>1</modscore>
	<htmltext>The problem is that it would need to stay airborne (the surface is hot enough to melt lead) and be very resistant to low pH (sulfuric acid rain is kind of a bummer).</htmltext>
<tokenext>The problem is that it would need to stay airborne ( the surface is hot enough to melt lead ) and be very resistant to low pH ( sulfuric acid rain is kind of a bummer ) .</tokentext>
<sentencetext>The problem is that it would need to stay airborne (the surface is hot enough to melt lead) and be very resistant to low pH (sulfuric acid rain is kind of a bummer).</sentencetext>
	<parent>http://www.semanticweb.org/ontologies/ConversationInstances.owl#comment10_02_04_1328218.31023986</parent>
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