Slashdot | Mars Rock Supports Cross-Seeding Theory: "'Mars rover Opportunity has found a rock (nicknamed 'Bounce') that 'provides conclusive evidence not only of Martian meteorites on Earth, but also of the possibility of cross-seeding.' Not only that, but according to the UPI article: 'The discovery of Bounce raises the distinct possibility that life arising from a common source could have existed for a time on both worlds.''"
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