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Mars crater with underground cavern

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Mars crater with underground cavern

Post  SpaceBot on Thu Jul 26, 2012 6:12 pm

Check out this very interesting Mars crater that has a cave at the bottom ....

Caves and Craters

We took a closer look at this feature with HiRISE and found this unusual geologic feature.

Link -

Was it created by underground lava flows? .. or water? ... or something else ? Question


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