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HiPOD 17 Mar 2022: Cool as Ice
Every winter, a layer of carbon dioxide frost (dry ice) forms on the surface of Mars. At its greatest extent in mid-winter, this frost reaches from the poles down to the middle latitudes, until it is too warm and sunny to persist.
However, small patches of dry ice are found closer to the equator on pole-facing slopes, which are colder because they receive less sunlight.
@HiRISE
*wonders if there is a sarlacc lurking below*