May 22, 2007

MORE EVIDENCE FOR A WET MARS:

A patch of Martian soil analyzed by NASA’s rover Spirit is so rich in silica that it may provide some of the strongest evidence yet that ancient Mars was much wetter than it is now. The processes that could have produced such a concentrated deposit of silica require the presence of water. . . .

“You could hear people gasp in astonishment,” said Steve Squyres of Cornell University, Ithaca, N.Y., principal investigator for the Mars rovers’ science instruments. “This is a remarkable discovery. And the fact that we found something this new and different after nearly 1,200 days on Mars makes it even more remarkable. It makes you wonder what else is still out there.”

Plenty of bang for the buck with this mission.

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