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What of the possiblity that earth seeded life on mars? I hear nothing but the possiblity that mars seeded life on earth.
how about both of em seeded from comets? this is mostly just a hunch, but i think the galaxy, if not the universe, is probably permiated with microbial life. i think that if mars was ever wet & warm for at least a little while, i think we will find that microbes were able to establish a foothold there-- in keeping with the article that started this thread, they may have been brought there by the same bombardment that made it wet & warm. for this reason i'm keenly interested in comet missions & finding out their composition down to the minutest detail. i believe we will find that comets (and by extension probably the interstellar medium) are carriers of space-adapted microbes. it has been pointed out that we already have these space-adapted microbes here on earth (e.g., radiodurans). why would these critters have evolved traits like this on a planet that doesn't require these traits? because they didn't originate here.
here's a link to a story that's probably old hat by now but i still think is tantalizing:
http://www.cnn.com/2000/TECH/space/11/2 … obe.claim/
as with any scientific finding, it's not without controversy & detractors. time-- and some comet missions! will tell who's right.
You can stand on a mountaintop with your mouth open for a very long time before a roast duck flies into it. -Chinese Proverb
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