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Thread: Life out side the earth.

  1. #1 Life out side the earth. 
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    scientists don't look for the life in planets where basic life supporting materials are not available like water, oxygen etc. but i think these life supporting materials are life supporter for the organisms living in the earth and not for the creature living in other planets. for example methane can be the life supporting gas for an alien living in neptune. so scientists should also look for the life in a planet where basic life supporting materials for the living creatures of the earth are not present.


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  3. #2  
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    The earliest forms of life on earth (found deep in the ocean) did not use oxygen. Until there developed life forms which produced oxygen as a waste product, life on earth as we know it could not exist.


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  4. #3  
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    We don't know what to look for with alien life totally unlike ours. It is not impossible that life could exist in an environment where lead is molten or where nitrogen is a liquid or even solid. It certainly could exist on the gas giants and underneath the surfaces of some of their moons. There is even the slightest possibility that life could exist in space.

    Almost certainly bacterial life exists under the surface of Mars since that is the only way we can explain the gassing off of methane every Martian summer (we now know Mars once had water and a denser atmosphere.)
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  5. #4  
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    Quote Originally Posted by Cyberia
    Almost certainly bacterial life exists under the surface of Mars since that is the only way we can explain the gassing off of methane every Martian summer
    Of course it isn't the only explanation. The seasonal methane releases on Mars could be geological or chemical in origin.

    http://blogs.discovermagazine.com/ba...ne-media-mess/
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