![]() ![]() ![]() ![]() Kaiser Crater-and the field of giant dunes inside-has been a frequent target of study for HiRISE ( see all the images here), so scientists have come to recognize the seasonal changes that take place at this ever-changing and shifting landscape. MRO has been orbiting Mars since 2006, and HiRISE has been snapping high-resolution images, showing the diversity of Martian surface. "Some of these gullies produce a variety of colors that are highlighted on the west-facing (illuminated) slopes, where the gullies appear to be glowing in the winter light," explains the team from the incredible HiRISE camera, on board the Mars Reconnaissance Orbiter. ![]() In the case of this picture, subsurface minerals show up in gullies that have eroded down the side of a a giant sand dune.
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