Tag Archives: dunes

HiRISE: Changing dunes of Wirtz Crater

The large dark feature is a classic Martian sand dune. Most sand on Earth is made from the mineral quartz, which is white and bright. On Mars, most sand is composed of dark basalt, a volcanic rock. For this reason, … Continue reading

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HiRISE: Landforms at end of Her Desher Vallis

Landforms at west end of Her Desher Vallis. Beautiful Mars series.

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THEMIS: Gale Crater mound’s northern side

THEMIS Image of the Day, January 20, 2017. Today’s false color image shows part of the floor of Gale Crater and the northern side of Mt. Sharp (Aeolis Mons). The blue-colored areas on the crater floor are likely dunes made … Continue reading

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THEMIS: Waves of dunes in Rabe Crater

THEMIS Image of the Day, January 18, 2017. Today’s false color image shows part of the sand dune field on the floor of Rabe Crater. (More on Rabe Crater here.) The THEMIS VIS camera contains 5 filters. The data from … Continue reading

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THEMIS: Terra Sirenum dunes & gullies

THEMIS Image of the Day, January 16, 2017. Today’s VIS image is of an unnamed crater in Terra Sirenum. There are gullies dissecting part of the crater rim, and small dunes on the crater floor. More THEMIS Images of the … Continue reading

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THEMIS: Active dunes in Noachis Terra

THEMIS Image of the Day, January 10, 2017. Today’s VIS image shows part of Noachis Terra, including several large dunes on the floor of an unnamed crater. These dunes are dark in tone, hence free of the light dust that’s … Continue reading

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THEMIS: Firsoff Crater in false color

THEMIS Image of the Day, January 6, 2017. Today’s false color image shows part of the interior deposits and floor of Firsoff Crater. The “blue worms” at the bottom of the image are sand dunes. The THEMIS VIS camera contains … Continue reading

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THEMIS: Dunes on floor of Newton Crater

THEMIS Image of the Day, January 4, 2017. Today’s false color image shows some of the floor of Newton Crater. The small dark bluish features are sand dunes. The curving lines reflect the wind patterns as they flow across the … Continue reading

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THEMIS: Dunes and debris in Juventae Chasma

THEMIS Image of the Day, December 27, 2016. Today’s false color image shows part of Juventae Chasma, including sand dunes on the floor of the chasma. The THEMIS VIS camera contains 5 filters. The data from different filters can be … Continue reading

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THEMIS: Basaltic dunes in Danielson Crater

THEMIS Image of the Day, December 26, 2016. Today’s false color image shows part of Danielson Crater. The dark blue features at the bottom of the image are sand dunes on the floor of the crater. The THEMIS VIS camera … Continue reading

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THEMIS: Dune field in Rabe Crater

THEMIS Image of the Day, December 6, 2016. Today’s VIS image shows a small part of the dune field on the floor of Rabe Crater. More THEMIS Images of the Day by geological topic.

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THEMIS: Waves of sand in Terra Sabaea crater

THEMIS Image of the Day, November 17, 2016. Today’s false color image shows dunes on the floor of an unnamed crater in Terra Sabaea. The dunes have piled up in the lee of the rdge that lies to the lower right … Continue reading

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HiRISE: Steep slope in eastern Noctis Labyrinthus

Steep slope in eastern Noctis Labyrinthus. Beautiful Mars series.

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HiRISE: Star & barchan dunes, Tyrrhena Terra

We monitor the dunes so that you don’t have to. Beautiful Mars series.

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Curiosity: Sandy patches ahead

Sol 1507, November 1, 2016. As Curiosity continues its trek toward Mt. Sharp, the Navcam shows the rover is approaching terrain with increasing numbers of wind-rippled patches of sand. Not too much farther ahead these will grow in size and … Continue reading

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