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Article: Volcanic Rock in Mars' Gusev Crater Hints at Past Water.
- Article from:
- AScribe Science News Service
- Article date:
- March 5, 2004
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Byline: Jet Propulsion Laboratory
PASADENA, Calif., March 5 (AScribe Newswire) -- NASA's Spirit has found hints of a water history in a rock at Mars' Gusev Crater, but it is a very different type of rock than those in which NASA's Opportunity found clues to a wet past on the opposite side of the planet.
A dark volcanic rock dubbed "Humphrey," about 60 centimeters (2 feet) tall, shows bright material in interior crevices and cracks that looks like minerals crystallized out of water, Dr. Ray Arvidson of Washington University, St. Louis, reported at a NASA news briefing today at NASA's Jet Propulsion Laboratory, Pasadena, Calif. He is the deputy principal ...