TAG | Scientists: Mars minerals left by groundwater, not seas |
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| by Stephen Withers | |
| Thursday, 08 March 2007 | |
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The deposits found by the Opportunity Mars rover are at one of the few locations on the planet where groundwater could reach the surface, explaining why such deep deposits were able to build up in the absence of a basin. This finding does not rule out the presence of seas or oceans during Mars' early history, but it does provide an explanation for the mineral deposits that squares with observations made from orbit and on the planet's surface.{moscomment}
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