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Earth from space: Wandering sand dunes circle gigantic 'eye' sculpted by ancient city-killer meteor in the SaharaRelated: See all the best images of Earth from space A group of five barchan, or "horned," sand dunes can be seen in a zoomed ...
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NASA’s Mars Orbiter Captures ‘Kidney Bean’ Sand Dunes: What It Reveals About the Red PlanetThis interaction causes the dunes to take on their distinctive kidney bean-like appearance, which is different from the more ...
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