Tag Archives: Thermal Emission Imaging System

THEMIS: Eroding layers in Spallanzani Crater

Posted on January 31, 2019 by rburnham

THEMIS Image of the Day, January 31, 2019. This VIS image shows part of the floor of Spallanzani Crater. At some point after the crater was created the floor was covered by a fill material. The material was laid down … Continue reading →

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THEMIS: Dunes and dust devil tracks in Terra Cimmeria

Posted on January 30, 2019 by rburnham

THEMIS Image of the Day, January 30, 2019. This unnamed crater in Terra Cimmeria has both a sand sheet with dune forms and a multitude of dust devil tracks. The linear and scalloped dark marks are created by dust devils … Continue reading →

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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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