Extraterrestrial Life and Panspermia
The cluster discusses the possibility of life on other planets like Mars or Venus, debates on panspermia as a mechanism for life's origins or spread, and challenges to Earth-centric assumptions about life's requirements such as carbon and water.
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What if “life” may not need the stuff that we see commonly on Earth?
That's a bit too earth-centric at this point. Could be life on the gas giants for all you know or elsewhere in other esoteric configurations.
Interesting, but signs of (extinct) life on mars could have been seeded from earth.
Life arising anywhere other than earth would be a big deal.
Maybe as opposed to carbon life form ?
The term you're looking for is panspermia. Nothing can necessarily be ruled out but it seems both 1) highly unlikely from a mechanistic perspective and 2) unnecessary to the explanation of life origin.
Could be life we sent there from earth via probes in the 70s?
Hm. So life on Earth could have come from some other place!
We're too similar to other life on earth for that to be credible.
Maybe not just lifeforms, civilizations?https://en.m.wikipedia.org/wiki/Silurian_hypothesis