HiRISE: Cloudy skies over Hypanis Valles

ESP_040579_1920This observation shows a candidate 2018 European Space Agency ExoMars landing site in Hypanis Valles. Instead of imaging ancient fluvial deposits (thought to be the remnants of a delta feed lake), the image shows patchy concentrations of dust clouds.

These clouds are part of the annually occurring Acidalia storm track, a regional dust storm system that originates in the Acidalia-Chryse-Kasei region and propagates southward into equatorial Valles Marineris and beyond. While this image is only partially obscured by dust, many others captured around this time frame were completely dominated by think clouds of dust… [More at link]

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