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ASU geologists suggest Mars features are result of meteorite strikes, not of evaporated lakes

filled with the white material have been imaged repeatedly by the rovers on Mars, but the current instrumentation cannot analyze them.

"If we want to find evidence of past life on Mars we need to look at these cracks," Knauth explained. "If there were microbes blowing around these rocks, they could settle and become entombed in these little fills.

"Forget trying to find fossils in situ in apparent lake or ocean beds, that stuff probably is long gone, being pulverized by later impacts," he added. "Instead we may have to look at these little films and fractures."


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Contact: Skip Derra
skip.derra@asu.edu
480-965-4823
Arizona State University
21-Dec-2005


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