Tag Archives: sand dunes

HiRISE: Ice amid polar dunes

Atypical landform among dunes in a polar erg — There is a very unusual ice formation apparently growing in a flat spot between dunes of the polar erg. Located on the actual dune material and not in the inter-dune material. Beautiful … Continue reading

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HiRISE: Southern floor of Gale Crater

This image along the southern interior floor of Gale Crater hosts many different landforms. Light-toned, scabby, and presumably hydrated materials on the crater floor are covered by large, darker-toned dunes. The small crater, about 2 kilometers in diameter, in the … Continue reading

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HiRISE: The dune sea of Ganges Chasma

This image is at the eastern edge of a very large deposit of wind-blown dust that occupies Ganges Chasma. This thick deposit surrounds hills and mesas that rise up through it. We can tell from the patterns that the wind … Continue reading

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THEMIS: Crater dunes

THEMIS Image of the Day, February 29, 2016. This VIS image shows a small crater located on the floor of a larger crater. Sand dunes are visible on the floors of both craters. These unnamed craters are located in Arabia … Continue reading

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HiRISE: Summer sand dunes

Mars’ permanent North Polar cap is ringed by sand dunes. In the winter and spring the dunes are covered by a seasonal cap of dry ice. Here, we see the dark dunes in the summer, bare of seasonal frost. Two … Continue reading

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HiRISE: Dunes and slopes in a crater

Dunes and slopes in a crater to the southwest of Xainza Crater. Beautiful Mars series.

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HiRISE: Dark dunes on light bedforms

Dark dunes superimposed on light bedforms — some dunes just like to be in the spotlight. Beautiful Mars series.

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HiRISE: Holden Crater dune topography

Holden Crater dune topography. Beautiful Mars series.

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THEMIS: Sand dunes – false color

THEMIS Image of the Day, January 29, 2016. Today’s false color image shows two large sand dunes. The dunes are the dark blue ridged features at the upper and lower right of the image. This image is located west of … Continue reading

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HiRISE: The changing sands

As of this date, MRO has been orbiting Mars for nine years. One benefit of MRO’s nearly three completed extended missions is the chance to see landscapes change over time. These barchan sand dunes are a case in point: these … Continue reading

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