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A comment on New study dramatically narrows the search for advanced life in the universe. Parent comment

Re:New study dramatically narrows the search for advanced li... by marcosdumay on Tuesday June 11, 2019 @11:16PM (#20161461)
There is plenty of life that doesn't care about carbon dioxide and monoxide here on Earth.

When life started here CO2 was from hundreds of thousands to many millions of times more abundant than it's now. Tens of thousands more of it won't probably even make oxygen respiration impossible.

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Re:New study dramatically narrows the search for advanced li... by kupopuffs on Wednesday June 12, 2019 @12:13AM (#20161717)
Source? All indirectly depend on carbon dioxide (through photosynthesis).
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Re:New study dramatically narrows the search for advanced li... by YaxelPerez on Wednesday June 12, 2019 @12:45AM (#20161837)
Ecosystems at the bottom of oceanic trenches rely on energy from volcanic vents (chemosynthesis) instead of photosynthesis
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Re:New study dramatically narrows the search for advanced li... by kupopuffs on Wednesday June 12, 2019 @02:06PM (#20167514)
Fascinating! Although chemosynthesis uses CO2, I did not expect Methane to be a carbon source
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Re:New study dramatically narrows the search for advanced li... by Balgair on Wednesday June 12, 2019 @11:43AM (#20165809)
Deep sea vents are not dependant on the photosyntheic carbon cycle.

https://en.wikipedia.org/wiki/Hydrothermal_vent#The_Deep_Hot...

Other extremophiles and archea exist and have been observed in deep caves and rocks. Life really does find a way!

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Re:New study dramatically narrows the search for advanced li... by kupopuffs on Wednesday June 12, 2019 @02:04PM (#20167501)
Fascinating! The source of carbon can still be carbon dioxide, in addition to methane.
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Re:New study dramatically narrows the search for advanced li... by marcosdumay on Wednesday June 12, 2019 @11:29AM (#20165616)
Hum... There is plenty of life that don't care about high concentration of those gases.
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Re:New study dramatically narrows the search for advanced li... by kupopuffs on Wednesday June 12, 2019 @02:05PM (#20167511)
Yes, like humans we don't care about CO2, but we depend on creatures that indirectly or directly use it.
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