> JS>Scientists theorize that a meteor struck Mars eons ago, knocking
 > JS>a rock into space which eventually found its way to Earth.
 > JS>What if the rock had originated on Earth, a meteor struck Earth,
 > JS>knocked the rock all the way to Mars, where another meteor then
 > JS>struck Mars, knocking the same rock all the way back to Earth.
 > JS>...Seems just as feasible to me.
 > If a posibility of a meteor hitting Mars is one in a million then
 > a
 > possiblity of what you describe above is at least one in a
 > trillion. ;-0
The first half of the scenario is pretty well documented. Most
scientists have come to accept the Mars rock as being truly from Mars.
I just threw in the rest for laughs.
Regards,
Jack
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