3 ms·

If we find life on Mars, I'd wager it will end up being evidence for panspermia.

• jlgreco 14y ago
  That is certainly a possibility. However contamination of Mars will make coming to that conclusion, if the evidence points to it, a great deal harder. (Well, obviously contaminating Mars is itself panspermia, but not really of the interesting sort. A confirmed instance of "natural" panspermia would tell us a lot about what we can expect about the distribution of life throughout the universe.)