Tag Archives: craters

THEMIS: Arabia Terra crater in false color

THEMIS Image of the Day, March 21, 2017. Today’s false color image shows the floor of an unnamed crater in Arabia Terra. The THEMIS VIS camera contains 5 filters. The data from different filters can be combined in multiple ways … Continue reading

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HiRISE: Craters on a crater’s floor

Craters on a crater’s floor. Beautiful Mars series.

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HiRISE: Crater with exposed layers

On Earth, geologists can dig holes and pull up core samples to find out what lies beneath the surface. On Mars, geologists cannot dig holes very easily themselves, but a process has been occurring for billions of years that has … Continue reading

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HiRISE: Raised bedrock in Terra Cimmeria

Large impact craters have central hills or mountains, because the tremendous shock waves from the impact first compresses the ground, then causes a rebound when it becomes uncompressed. This effectively raises bedrock that was once deeply buried to the surface. … Continue reading

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HiRISE: Small fresh crater, with ejecta

Small fresh crater. Beautiful Mars series.

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THEMIS: Crater on crater in Noachis Terra

THEMIS Image of the Day, December 7, 2016. This VIS images shows part of two unnamed craters in Noachis Terra. The younger of the two craters is at the bottom of the image with one side visible in the image. … Continue reading

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HiRISE: Periglacial terrain & dust devil tracks

Periglacial terrain. Beautiful Mars series.

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THEMIS: Pit crater in Noachis Terra

THEMIS Image of the Day, December 2, 2016. Today’s VIS image is located in Noachis Terra. The unnamed crater at the bottom of the image contains a central pit. Central features such as pits and peaks can provide information about … Continue reading

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THEMIS: Snow & ice fill crater in martian Arctic

THEMIS Image of the Day, November 30, 2016. This VIS image shows part of the north polar cap. This image is along the cap margin. The buried remnants of an impact crater are visible in the bottom half of the … Continue reading

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THEMIS: False color on Terra Sabaea

THEMIS Image of the Day, November 18, 2016. Today’s false color image shows part of Terra Sabaea. This area lies to the west of the Isidis Planitia impact basin, and near one of the candidate landing sites (Jezero Crater) for … Continue reading

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