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other_usernames_gone t1_j0fsgpy wrote

Reply to comment by marketrent in Two exoplanets identified as twin ‘water worlds’, each enveloped with water vapor by marketrent

Can high pressure liquid water be used by life? Same with supercritical water or even steam?

I suppose the answer is probably we won't know until we find life that does, but theoretically speaking.

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YouAreGenuinelyDumb t1_j0hf37i wrote

High pressure liquid water can be used by life, as we have some examples on Earth like extremophiles and deep sea marine life.

I don’t know enough about supercritical fluids to answer that one. I think steam could be used by organisms, but I would presume that they would condense it to liquid water for their actual use.

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