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Astronomy

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  • $\begingroup$ There are probably two separate questions to be answered here. 1) The requirement of liquid water for the genesis of life on a planet, and 2) how necessary a supply of liquid water is to the maintenance of life once it gets going. $\endgroup$
    – David H
    Commented Feb 3, 2014 at 18:55
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    $\begingroup$ This question appears to be off-topic because it is about biology and as such it should be asked on Biology.stackExchange. Chemistry.stackexchange also seems useful. $\endgroup$
    – Eduardo Serra
    Commented Feb 3, 2014 at 19:02
  • $\begingroup$ The definition of life is probably hard to pin down, since we only know terrestrian life. A hypothetical life form based on silicon, diamond chips or fullerenes as kind of advanced computers, if it ever could occur, wouldn't necessarily need water as basis. $\endgroup$
    – Gerald
    Commented Feb 3, 2014 at 20:37
  • $\begingroup$ @EduardoSerra I disagree with that assessment in this case. It is equally on topic here as a matter of astrobiology. $\endgroup$
    – called2voyage ♦
    Commented Feb 3, 2014 at 21:04
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    $\begingroup$ This is a question frequently discussed in astronomy more specifically astrobiology. I believe this is on topic for this site $\endgroup$
    – bogen
    Commented Feb 3, 2014 at 22:38