[ad_1] Two views of the Hiawatha crater region: one covered by the Greenland Ice Cap, the other showing the topography of the rock beneath the ice cap, including the crater. Credits: NASA …
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[ad_1] Researchers using specialized radar penetrating the ice have located a mbadive impact crater buried under a layer of Greenland ice of half a mile thick. The crater is 31 km wide, …
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[ad_1] This mosaic of a prominent mound located on the west side of Cerealia Facula was obtained by NASA's Dawn spacecraft on June 22, 2018, at an altitude of about 21 miles …
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