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Polar Dune

火星壁纸

by NASA/JPL/ASU

NASA Image Library · 公有领域（Public Domain）

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A large sand sheet with surface dune forms is located on the floor of this crater near the south pole. The polar cap rests against the southern part of the sand sheet. The dune appears bright in this daytime 2001 Mars Odyssey THEMIS IR image.

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