Marvin may be a relative, after all

This is neat:

Biochemical evidence that life did not originate on earth, that our gene lines may have originated on Mars.

Professor Benner says an oxidized mineral form of molybdenum, which on some models would have been critical to the origin of life on earth, would not have been available.

Mars had plenty of the stuff three billion years ago, though. This is "yet another piece of evidence which makes it more likely life came to Earth on a Martian meteorite, rather than starting on this planet."

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