Space
Icy ‘hand’ moves boulders on Mars
On Mars, curiously ordered boulder clumps form near the northern ice cap when seasonal ice envelops the rocks and the ground shrinks and shifts beneath them
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On Mars, curiously ordered boulder clumps form near the northern ice cap when seasonal ice envelops the rocks and the ground shrinks and shifts beneath them
NASA's Opportunity rover has reached the Endeavour crater, which was once soaked with water and could hold clues as to whether there was ever life on Mars