With the simultaneous announcement of a possible nitrogen-based, cell-like structure allowing life outside the “liquid water zone” (but within a methane atmosphere) announced by researchers at Cornell (academic paper) and the mystery of fluctuating methane levels on Marsraising the possibility of methane-respiring life, there now exists the possibility of a whole new branch of the tree of life that does not rely on either carbon or oxygen for respiration. We may find evidence of such life here on Earth down in the mantle where “traditional” life cannot survive, but where bacteria has evolved to live off hydrocarbons like methane and benzene.
There’s a lot in this post, all relating to life and methane. The first is about a study of possible life that might exist in liquid methane (instead of water)…
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