Tag Archives: Mars Odyssey

THEMIS: Gullies etch a crater rim in Terra Cimmeria

Posted on November 16, 2018 by rburnham

THEMIS Image of the Day, November 16, 2018. Multiple gullies dissect the rim of this unnamed crater in Terra Cimmeria. The soft-looking material at the foot of the rim (where it meets the crater floor) may contain buried ice. See … Continue reading →

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THEMIS: Landslide in Terra Sirenum crater

Posted on November 15, 2018 by rburnham

THEMIS Image of the Day, November 15, 2018. A small landslide deposit is visible at the bottom left corner of this VIS image. The landslide is in an unnamed crater in Terra Sirenum. See more THEMIS Images of the Day … Continue reading →

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THEMIS: Big dunes and little ones in Russell Crater

Posted on November 14, 2018 by rburnham

THEMIS Image of the Day, November 14, 2018. This VIS image shows part of the floor of Russell Crater, including sand dunes of mulitple sizes. Russell Crater is located in Noachis Terra. Do small dunes merge to become big ones? … Continue reading →

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THEMIS: Small channel in Terra Sirenum

Posted on November 13, 2018 by rburnham

THEMIS Image of the Day, November 13, 2018. A small channel system dissects the rim of this unnamed crater in Terra Sirenum. The plains around the crater rim show faint dark streaks, tracks left by dust devils. See more THEMIS … Continue reading →

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THEMIS: South polar ice cap textures

Posted on November 12, 2018 by rburnham

THEMIS Image of the Day, November 12, 2018. This VIS image shows part of the south polar cap. This image was collected near the end of the southern spring season. See more THEMIS Images of the Day by geological subject.

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THEMIS: Channels flowing from a ridge

Posted on November 9, 2018 by rburnham

THEMIS Image of the Day, November 9, 2018. This VIS image is located in Terra Sirenum. The bright linear feature at the bottom of the image is the crest of a ridge. The multiple channel features toward the top of … Continue reading →

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THEMIS: Sinuous features hint at ground ice

Posted on November 8, 2018 by rburnham

THEMIS Image of the Day, November 8, 2018. This VIS image is located in an unnamed crater in Noachis Terra. The sinuous feature near the bottom of the crater rim appears to have been caused by down slope movement of … Continue reading →

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THEMIS: Pit chains and craters on Ascraeus Mons

Posted on November 7, 2018 by rburnham

THEMIS Image of the Day, November 7, 2018. The linear features in this VIS image are located on part of the large flow feature on the southern flank of Ascraeus Mons. The features most likely formed by collapse of the … Continue reading →

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THEMIS: Crater rim gullies in Terra Sirenum

Posted on November 6, 2018 by rburnham

THEMIS Image of the Day, November 6, 2018. Numerous gullies dissect the northern rim of this unnamed crater in Terra Sirenum. The inside of the north rim faces away from the Sun and is more deeply gullied than the Sun-facing … Continue reading →

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THEMIS: Graben in Sirenum Fossae

Posted on November 5, 2018 by rburnham

THEMIS Image of the Day, November 5, 2018. This VIS image shows a section of Sirenum Fossae. The linear features are called graben, and are a sure sign of tension force in the local crust. Graben are formed by blocks … Continue reading →

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