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It does stand to reason that if there was life on Mars there might still be life on Mars. Everywhere we look on Earth, life exists, even in extreme environments
by Loughla 2y ago
It does stand to reason that if there was life on Mars there might still be life on Mars. Everywhere we look on Earth, life exists, even in extreme environments and independent of the sun's energy.
I think the first alien we'll find will be an extremophile bacteria or other microorganism.
- andrewflnr 2y agoAlmost certainly microorganism, but not necessarily extremophile. It depends what you mean by "find". We might "find" oxygen in an exoplanet atmosphere and go, "yay, they have... algae?" :D
- tomrod 2y agoThat would be hugely important, actually. With N=1, we know that life exists but not how common different development might be. Algae on another planet would suggest panspermia of common development pathways.
- andrewflnr 2y agoWell, you don't actually get an id as specific as earthlike algae from an atmospheric spectrum (I guess I didn't actually say that's what I was thinking. Oops :D). If you actually went there and found earthlike DNA, then yes.