About
The small crater in the middle of the image is at the upwind side of the dune field. There is a considerable amount of sand within the crater, with a relatively smooth surface and few dune forms. It is likely that this crater provides a source of available sand for the large dune field. Located in eastern Arabia is an unnamed crater, 120 kilometers (75 miles) across. The floor of this crater contains a large exposure of rocky material, a field of dark sand dunes, and numerous patches of what is probably fine-grain sand. The shape of the dunes indicate that prevailing winds have come from different directions over the years. The Odyssey spacecraft has spent over 15 years in orbit around Mars, — NASA JPL · 2018. ABD devlet eseri: kamu mali, ticari islerde de serbestce kullanilabilir.
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