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Originally Posted by Rain Man
I have no idea how it works, but there is a theory that life could have transferred between the two planets. I don't remember if it was back in the planet-forming phase or if it's something more recent.
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Originally Posted by Dave Lane
Its true. I think its called Transpermia if I remember correctly.
Its facinating to read and think about and probably true. We are all Martians, just like we are all Africans.
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Originally Posted by KC Fish
The idea is that when an asteroid or something hits the planet, sometimes it hits hard enough to knock pieces of the planet out of the atmosphere. And those pieces have microbes and other micro-organisms that live in the little cracks and fissures, which can withstand the heat of the collision and the timeless vacuum of space. And then thousands if not millions of years later, those same rocks, now meteoroids themselves, land on another planet. And those little micro-organisms find themselves on a new planet in which the atmosphere doesn't kill them. Slowly over billions of years, the micro-organisms evolve into stuff.
They thought they found proof of something similar a while back in a martian meteorite. They thought it was a fossil of a martian micro-organism. But it turned out not to be. But the theory is actually sound.
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Thanks, all. It's amazing the information Google will turn up. I feel like an expert on the subject now.