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Polygons, Crater Layers, and Defrosting Dunes (edm n. 2 - MULTISPECTRUM-2; credits: Lunexit)
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Another feature of interest is the Sublimating Polygons that have very small ripples on top of them. Polygons are created from a freeze-thaw processes similar to features on Earth that undergo annual contraction of the Permafrost Regolith.
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