October 2nd, 2009
Another Mars meteorite seen by Opportunity. Image Credit: NASA/JPL-Caltech
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October 3rd, 2009 at 5:30 am
Considering the ease with which meteorites are ID on the surface of Mars and statistically extrapolating the total number of Martian meteorites based on the numerous examples already found, I wonder what fraction of them had their origins on Earth. Setting aside the possibility that life may hay hiked a ride to Mars from Earth, just finding these early (possibly prebiotic) samples of our early planet would certainly enrich our knowledge of early Earth (and possibly the early Moon, too).