164. Neil deGrasse Tyson — Cosmic Queries: StarTalk’s Guide to Who We Are, How We Got Here, and Where We’re Going
The Michael Shermer Show
00:00
Is Pan Spermia a Viable Explanation?
In a collision between an asteroid and a planet, it can send shock waves through the surrounding terrain of sufficient ferocity that it can fling rocks to escape velocity from that planet. Microbes are in that rock as it gets cast out into space. Now, what happens next? Well, eventually these rocks will land on another planet. If there is any variant of a microbe that could surv ive those conditions, then that microbe would be alive on arrival to earth. O and thereby seeding life with on earth, with life that began on mars.
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