Here ’s the most fierce consequence ever observed on Mars , tons of tilt , dust and glass plummeting down a 700 - beat drop-off at 15 meters per second . It ’s one of four avalanche the High Resolution Imaging Science Experiment ( HiRISE ) camera on the Mars satellite observed on the compass north polar escarp of Mars . The white material at the top of the cliff is carbon - dioxide frosting , and it ’s possible spring sunshine have the chalk to expatiate and break , send loose rubble and shabu hurl down the slope . Another possible explanation : A Marsquake . Click through for the full circle of images .
[ Hyakutake 1957 ]
HiRISEMars
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