Tag Archives: Mars Odyssey

THEMIS: Dune patch in a Sirenum crater

Posted on January 29, 2019 by rburnham

THEMIS Image of the Day, January 29, 2019. A field of sand dunes is visible on the floor of this unnamed crater. The crater is located in Terra Sirenum. See more THEMIS Images of the Day by geological subject.

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THEMIS: Lava flow fronts in Daedalia Planum

Posted on January 28, 2019 by rburnham

THEMIS Image of the Day, January 28, 2019. Today’s VIS image shows a small portion of the immense lava plains of Daedalia Planum. These flows originated from Arsia Mons, one of the three large Tharsis volcanoes. See more THEMIS Images … Continue reading →

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THEMIS: Gullies in Terra Sirenum

Posted on January 25, 2019 by rburnham

THEMIS Image of the Day, January 25, 2019. Multiple gullies dissect the rim of an unnamed crater located in Terra Sirenum. Towards the bottom of the image several small gullies are visible located on the rim of an older crater. … Continue reading →

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THEMIS: South polar ice cap in summer

Posted on January 24, 2019 by rburnham

THEMIS Image of the Day, January 24, 2019. This VIS image of the south polar cap was taken during the middle of southern hemisphere summer. The surface is free of frost and the layering that makes up the cap is … Continue reading →

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THEMIS: Ma’adim Vallis

Posted on January 23, 2019 by rburnham

THEMIS Image of the Day, January 23, 2019. This VIS image shows a small section of Ma’adim Vallis. Ma’adim Vallis is located in Terra Cimmeria and empties into Gusev Crater, the home of the MER Spirit rover. See more THEMIS … Continue reading →

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THEMIS: Yardangs in Candor Chasma

Posted on January 22, 2019 by rburnham

THEMIS Image of the Day, January 22, 2019. This VIS image shows part of the eastern end of Candor Chasma. The upper edge of the canyon is at the bottom of the image. The slopes of the chasma are eroded … Continue reading →

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THEMIS: Out of round

Posted on January 21, 2019 by rburnham

THEMIS Image of the Day, January 21, 2018. This VIS image shows a group of craters in Terra Sirenum. The apparent youngest one is the center crater with the scalloped rim. Subsurface tectonic features like faults can interfere with crater … Continue reading →

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THEMIS: Moving downhill

Posted on January 18, 2019 by rburnham

THEMIS Image of the Day, January 18, 2019. This VIS image shows an isolated mountain east of Hellas Planitia. Erosion is moving material down hill towards the lower elevations. The linear features on the hill debris indicate that volatiles such … Continue reading →

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THEMIS: Gullies and floor features in Aonia Terra crater

Posted on January 17, 2019 by rburnham

THEMIS Image of the Day, January 17, 2019. Many large gullies dissect the rim of this unnamed crater in Aonia Terra.  The inner walls and floor both show evidence of pasted-on terrain — a layer of potentially ice-rich dust. See … Continue reading →

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THEMIS: Aonia Terra crater gullies

Posted on January 16, 2019 by rburnham

THEMIS Image of the Day, January 16, 2019. Today’s VIS image shows part of an unnamed crater in Aonia Terra. The rim of this crater contains many deep gullies. At the top left of the image a channel system is … Continue reading →

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