It sounds like most of Twitter is hoping for "microscopic cows" as source of Mars methane. You guys are special. :-)
@CatherineQ @msbentley Silly. There's abiotic methane on almost every major body we've looked at, plus comets.
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@CatherineQ @msbentley Silly. There's abiotic methane on almost every major body we've looked at, plus comets.