Tag Archives: north polar layered deposits

THEMIS: Polar cap layers at Ultima Lingula

Posted on February 4, 2019 by rburnham

THEMIS Image of the Day, February 4, 2019. Today’s VIS image is located along the margin of Ultima Lingula, where the polar cap meets the surrounding plains. The feature in the center of the image is a chasma where the … Continue reading →

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HiRISE: Crater on north polar layered deposits

Posted on September 21, 2018 by rburnham

Crater on north polar layered deposits. Even at HiRISE resolution, it’s difficult to spot in black and white, but the color enhanced picture at full resolution tells a different story. Beautiful Mars series. [More at links]

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HiRISE: Lingering frost

Posted on June 28, 2018 by rburnham

Lingering frost. The North Polar layered deposits comprise a thick stack of icy layers. Part of this image has lingering seasonal frost, which serves to accentuate those layers.  An additional rationale for this observation is to document new activity in … Continue reading →

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HiRISE: Ice block avalanche

Posted on June 27, 2018 by rburnham

HiRISE has been re-imaging regions first photographed in 2006 through 2007, six Mars years ago. This long baseline allows us to see large, rare changes as well as many smaller changes. One of the most actively changing areas on Mars … Continue reading →

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HiRISE: Ever winding

Posted on June 6, 2018 by rburnham

Ever winding. This image (and its partner) was acquired to compare against an earlier stereo pair of the same region several years ago to determine if any changes have occurred. Beautiful Mars series. [More at links]

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THEMIS: Polar layers

Posted on May 29, 2018 by rburnham

THEMIS Image of the Day, May 28, 2018. This VIS image shows part of the margin of the north polar cap and the surrounding plains. The layering of the ice is easily visible due to the dust that is deposited … Continue reading →

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THEMIS: Polar dunes and layers of ice and dust

Posted on May 24, 2018 by rburnham

THEMIS Image of the Day, May 24, 2018. This VIS image shows the margin between the polar cap and the surrounding plains. There are dunes on the plains at the top of the image. In the upper left corner it … Continue reading →

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HiRISE: North polar layered deposits

Posted on May 22, 2018 by rburnham

North polar layered deposits. Beautiful Mars series. [More at links]

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Radar gives new info on Mars climate change, polar cap ages

Posted on September 27, 2017 by rburnham

Three-dimensional (3-D) subsurface radar volumes generated from thousands of 2-D radar profiles are revealing new information about the polar regions of Mars, including more accurate mapping of CO2 and water ices, the discovery of buried impact craters, and new elevation … Continue reading →

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HiRISE: North polar layers: streaking and unconformity

Posted on September 20, 2017 by rburnham

In geology, an unconformity is a buried erosion surface, where the bedding layers don’t match. It doesn’t mean a mismatch in attitudes and beliefs, with rebellious behavior like streaking. But Mars does have streaking of a different kind, from the … Continue reading →

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