Tag Archives: dunes

HiRISE: Ongoing dune activity in Ganges Chasma

Ongoing dune activity in Ganges Chasma. Beautiful Mars series.

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HiRISE: Dune ripples in Her Desher Vallis

These small ripples, about 10 meters apart, are located in Her Desher Vallis. Her Desher is a small channel that shows evidence of phyllosilicates—silicates with a sheet-like structure, such as clay minerals. Much larger images of this area show that … Continue reading

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THEMIS: False color dunes in Noachis Terra

THEMIS Image of the Day, May 22, 2017. Today’s false color image shows dunes on the floor of an unnamed crater in Noachis Terra. The blue false-color tint suggests the dunes are made of basaltic sand. The THEMIS VIS camera … Continue reading

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Opportunity: At the valley’s head

Sol 4733, May 18, 2017. With Opportunity perched at the top of the slope leading down into Perseverance Valley, mission scientists and rover drivers are imaging the terrain all around the rover. Above, the view toward the south with Winnemucca … Continue reading

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THEMIS: Dunes besiege Terra Sirenum crater

THEMIS Image of the Day, May 17, 2017. Not all Martian sand dunes are located in craters. This VIS image shows dunes located on the plains of Terra Sirenum. More THEMIS Images of the Day by geological topic.

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THEMIS: Dune sheet in Proctor Crater

THEMIS Image of the Day, May 5, 2017. Today’s false color image shows part of the sand sheet with surface dune forms located on the floor of Proctor Crater. Proctor Crater is located in Noachis Terra. The THEMIS VIS camera … Continue reading

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THEMIS: Swirling dunes in Charlier Crater

THEMIS Image of the Day, April 6, 2017. This VIS image shows part of the large sand sheet with surface dune forms on the floor of Charlier Crater in Terra Sirenum. The complex pattern in the dune crests may result … Continue reading

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THEMIS: Heap of dunes in Noachis Terra crater

THEMIS Image of the Day, March 31, 2017. This VIS image shows a portion of a sand sheet with surface dune forms on the floor of an unnamed crater in Noachis Terra. More THEMIS Images of the Day by geological … Continue reading

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THEMIS: Sand sheet in Cimmeria crater

THEMIS Image of the Day, March 30, 2017. Today’s VIS image shows a sand sheet with surface dune forms on the floor of an unnamed crater in Terra Cimmeria. More THEMIS Images of the Day by geological topic.  

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THEMIS: Rabe Crater dune field in VIS

THEMIS Image of the Day, March 29, 2017. This VIS image was collected simultaneously with yesterday’s IR image. It shows part of the dune field on the floor of Rabe Crater. Scientists compare VIS images with IR ones to help … Continue reading

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