... on mars would indicate that there may be ice deposits as thick as a mile or more in certain locations. Considering how Mars is considerably smaller than Earth I would find it fascinating if the dry planet never lost it's water to space as many have speculated but it all just froze up and been covered by years of wind blown sediment.
Vast stores of water ice found on Mars
Researches say melted water could cover whole of planet
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Strong evidence of wet past on Mars
The Mars rover Spirit has uncovered the strongest evidence yet that the planet used to be wetter than previously thought, scientists reported Monday.
The robot analyzed a patch of soil in Gusev Crater and found it unusually rich in silica. The presence of water would have been necessary to produce such a large silica deposit, scientists said.
"This is a remarkable discovery," principal investigator Steve Squyres of Cornell University said in a statement. "It makes you wonder what else is still out there."
Leaving aside questions about climate change, I take this as further indication of how little we know and how much we have yet to learn.
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