Tag Archives: ice

HiRISE: Honey, I shrunk the mesas

Posted on May 20, 2015 by rburnham

The South Polar residual cap (the part that lasts through the summer) is composed of carbon dioxide ice. Although the cap survives each warm summer season, it is constantly changing its shape due to sublimation of carbon dioxide from steep … Continue reading →

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THEMIS: South polar layers — false color

Posted on May 15, 2015 by rburnham

THEMIS Image of the Day, May 15, 2015. The THEMIS VIS camera contains 5 filters. The data from different filters can be combined in multiple ways to create a false color image. These false color images may reveal subtle variations … Continue reading →

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THEMIS: Southern spring — false color

Posted on May 14, 2015 by rburnham

THEMIS Image of the Day, May 14, 2015. The THEMIS VIS camera contains 5 filters. The data from different filters can be combined in multiple ways to create a false color image. These false color images may reveal subtle variations … Continue reading →

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HiRISE: Polygonal cracks meet south polar layered deposits

Posted on May 1, 2015 by rburnham

Exposure of south polar layered deposits. Beautiful Mars series.

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THEMIS: Debris flow

Posted on April 14, 2015 by rburnham

THEMIS Image of the Day, April 14, 2015. This VIS image shows downslope movement of material from the hill at the top of the image. Linear ridges and channels are visible on the surface to the debris flow deposit. More … Continue reading →

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Mars has mid-latitude belts of glaciers

Posted on April 8, 2015 by rburnham

Mars has distinct polar ice caps, but Mars also has belts of glaciers at its central latitudes in both the southern and northern hemispheres. A thick layer of dust covers the glaciers, so they appear as the surface of the … Continue reading →

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THEMIS: North polar cap false color

Posted on January 28, 2015 by rburnham

THEMIS Image of the Day, January 28, 2015. The THEMIS VIS camera contains 5 filters. The data from different filters can be combined in multiple ways to create a false color image. These false color images may reveal subtle variations … Continue reading →

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THEMIS: Polar trough

Posted on December 5, 2014 by rburnham

THEMIS Image of the Day, December 5, 2014. This VIS image shows one of many troughs located on the south polar cap. More THEMIS Images of the Day by geological topic.  

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THEMIS: South polar layers

Posted on December 4, 2014 by rburnham

THEMIS Image of the Day, December 4, 2014. The layers in this VIS image are near the margin of the south polar cap. More THEMIS Images of the Day by geological topic.

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THEMIS: South polar cap

Posted on November 24, 2014 by rburnham

THEMIS Image of the Day, November 24, 2014. This VIS image illustrates the complex surface of the polar cap, featuring not just different surface textures, but ridges and valleys as well. More THEMIS Images of the Day by geological topic.

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