Tag Archives: dunes

THEMIS: Russell Crater dunes in false color

THEMIS Image of the Day, July 7, 2017. Today’s false color image shows part of the large dune form on the floor of Russell Crater. The bluish tint of the dunes in false color suggests that they are made of … Continue reading

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THEMIS: Dunes, dust devil tracks, and wind streaks on northern polar lowlands

THEMIS Image of the Day, June 21, 2017. Do you see what I see? Look out, a barrage of bullets is headed our way! (THEMIS Art #130) More THEMIS Images of the Day by geological topic.

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HiRISE: The White Cliffs of ‘Rover’

This image reminds us of the rugged and open terrain of a stark shore-line, perhaps of an island nation, such as the British Isles. A close-up in enhanced color produces a striking effect, giving the impression of a cloud-covered cliff … Continue reading

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HiRISE: Gullies and craters and dunes, oh my!

This unnamed, approximately 30-kilometer diameter crater, formed in the Southern highlands of Mars. Our image shows regions of geologic diversity within, making this an interesting spot for scientists to study how different Martian processes interact with each other. Gullies, or … Continue reading

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THEMIS: Mega-dune in Russell Crater

THEMIS Image of the Day, June 1, 2017. Today’s false color image shows part of Russell Crater in Noachis Terra. The large dune (probably basaltic sand) forms a ridge with interesting shapes on its surface, reworked by the wind. The … Continue reading

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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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