Tag Archives: sand dunes

THEMIS: Sand sheet in Cimmeria crater

Posted on March 30, 2017 by rburnham

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

Posted on March 29, 2017 by rburnham

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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HiRISE: Plains south of Valles Marineris

Posted on March 29, 2017 by rburnham

This enhanced-color sample reveals the incredible diversity of landforms on some Martian plains that appear bland and uniform at larger scales. Here we see layers, small channels suggesting water flow, craters, and indurated sand dunes. [More at link]

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HiRISE: Unusual dunes on a crater floor

Posted on March 28, 2017 by rburnham

Unusual dunes on a crater floor. Beautiful Mars series.

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THEMIS: Rabe Crater dunes in infrared

Posted on March 28, 2017 by rburnham

THEMIS Image of the Day, March 28, 2017. This image of Rabe Crater and the region around it was collected using the IR (infrared) camera. The brighter the material, the warmer the surface is. Most dunes on Mars are dark … Continue reading →

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HiRISE: The splitting of the dunes

Posted on March 27, 2017 by rburnham

The mound in the center of this image appears to have blocked the path of the dunes as they marched south (north is to the left in this image) across the scene. Many of these transverse dunes have slipfaces that … Continue reading →

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THEMIS: Gullies on a big dune

Posted on March 27, 2017 by rburnham

THEMIS Image of the Day, March 27, 2017. Today’s VIS image shows part of the large dune form on the floor of Russell Crater. The big dune is scarred by gullies, with little dunes gathering at the gullies’ ends. More … Continue reading →

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Curiosity: Edge of Ogunquit Beach

Posted on March 24, 2017 by rburnham

Sol 1646, March 24, 2017. Curiosity drove about 30 meters (100 feet) to the east-northeast. This placed the rover close to the edge of a large sand patch where it can investigate the dune sand and dune ripples at the … Continue reading →

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THEMIS: Gale Crater & Mt. Sharp in false color

Posted on March 24, 2017 by rburnham

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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HiRISE: Dunes of the Southern Highlands

Posted on March 23, 2017 by rburnham

Sand dunes are scattered across Mars and one of the larger populations exists in the Southern hemisphere, just west of the Hellas impact basin. The Hellespontus region features numerous collections of dark, dune formations that collect both within depressions such … Continue reading →

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