Tag Archives: north polar layered deposits

HiRISE: Crater on north polar layered deposits

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

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

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

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

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

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

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

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

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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THEMIS: North polar ice cap troughs and layers

THEMIS Image of the Day, June 28, 2017. Do you see what I do? Looks like a person’s profile at the bottom of this image. (THEMIS Art #135) More THEMIS Images of the Day by geological topic.

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