Tag Archives: active dunes

HiRISE: Ongoing dune activity in Ganges Chasma

Ongoing dune activity in Ganges Chasma. Beautiful Mars series.

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HiRISE: Windblown sand in Ganges Chasma

Dark, windblown sand covers intricate sedimentary rock layers in this image from Ganges Chasma, a canyon in the Valles Marineris system. These features are at once familiar and unusual to those familiar with Earth’s beaches and deserts. Most sand dunes … Continue reading

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THEMIS: Gale Crater & Mt. Sharp in false color

THEMIS Image of the Day, March 24, 2017. Today’s false color image shows part of Gale Crater, the home of Curiosity Rover. The rover has driven about 10 miles (16 km) from where it landed and is currently traversing across … Continue reading

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THEMIS: Warm dunes glowing in Kaiser Crater

THEMIS Image of the Day, March 9, 2017. This is an infrared image of Kaiser Crater and the dune field on the crater floor. Brighter tones in the image are warmer surfaces. The basaltic dunes are dark in the visible, … Continue reading

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THEMIS: Active sand dunes in Sirenum crater

THEMIS Image of the Day, March 6, 2017. Today’s VIS image shows a field of dunes on the floor of an unnamed crater in Terra Sirenum. Their dark color indicates they are dust-free and suggests that the dune sands are … Continue reading

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HiRISE: Monitoring dunes in Coprates Chasma

Monitoring dunes in Coprates Chasma.  – Always keep your eye on those dunes. They creep up on you. Slowly. Beautiful Mars series.

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Mars winds carve mountains, move & raise dust

On Mars, wind rules. Wind has been shaping the Red Planet’s landscapes for billions of years and continues to do so today. Studies using both a NASA orbiter and a rover reveal its effects on scales grand to tiny on … Continue reading

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THEMIS: Field of dunes in Sumgin Crater

THEMIS Image of the Day, January 30, 2017. Today’s VIS image shows sand dunes on the floor of Sumgin Crater. The crater is located in Noachis Terra north of Argyre Planitia. The dunes’ darker tone suggests they are relatively dust-free … Continue reading

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THEMIS: Crater channels, gullies, dunes & a pit

THEMIS Image of the Day, January 25, 2017. This VIS image shows part of an unnamed crater in Terra Cimmeria. The crater rim is dissected by gullies, and the central pit has several channels entering from the higher elevation of … 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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