If I remember correctly from OAC bio, the theory that life started in space and then was brought to Earth by a meteorite is called "panspermia." The main argument in its favour is that while the amino acids necessary for the beginning of life on Earth have been replicated by modern scientists (in an effort to prove that basic life evolved here from these amino acids, and not in space), they are the wrong ones; that is, the particular amino acids that have been replicated are NOT the ones (or a combination of them) which would create what we think would be the first life on Earth.
Ugh. I sound like I'm writing a science paper. How dry. Hope that was interesting to someone out there.
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Ugh. I sound like I'm writing a science paper. How dry. Hope that was interesting to someone out there.