Quote:
Originally Posted by eburacum45
Are you asking the question about life on Earth, or life in general in the universe?
If it is the former, the answer could be either, with a somewhat smaller chance of life starting elsewhere in the solar system and migrating here. Mars is the most likely candidate.
Lithopanspermia between stars in a cluster is also a very small possibility.
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If it is about life in the universe as a whole, then all life started originally by abiogenesis, whether or not it has been subsequently transported by lithopanspemia or translocation by intelligent species.
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I know that life that supposedly came to Earth as in a panspermia-theory-like fashion would have started by abiogenesis in space. I'll aply the term abiogenesis a bit more careful
Would you say 1) the odds of life forming in outer space are
bettr than the odds of life forming on Earth?
Or 2) do you think panspermia-theory a likely candidate for 'seeding' Earth because life would have had more time to develop? (The Universe is older than the Earth, and life has had more time to form in space/nebulae, etc, long before Earth existed.)
The options are not mutually exclusive per se, but I have my doubts about number one.