Tag Archives: Mars Odyssey

THEMIS: Tectonic traces in Amenthes Fossae

Posted on June 13, 2019 by rburnham

THEMIS Image of the Day, June 13, 2019. The two linear depressions crossing this VIS image are graben created by tectonic activity. Explore more THEMIS Images of the Day by geological subject.

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THEMIS: The graben of Ceraunius Fossae

Posted on June 12, 2019 by rburnham

THEMIS Image of the Day, June 12, 2019. This VIS image shows part of Cerunius Fossae. The linear depressions are fault bounded features called graben. These features form from tectonic forces that are pulling apart the surface, created space for … Continue reading →

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THEMIS: Rough ground in Nilosyrtis

Posted on June 11, 2019 by rburnham

THEMIS Image of the Day, June 11, 2019. Today’s VIS image is located on the margin of the Terra Sabaea highlands and the Nilosyrtis Mensae lowlands. The drop off is very steep – about 18,000 ft. This “edge” circles the … Continue reading →

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THEMIS: Summit caldera of Arsia Mons

Posted on June 10, 2019 by rburnham

THEMIS Image of the Day, June 10, 2019. Today’s VIS image shows part of the summit caldera of Arsia Mons. Arsia Mons is the southernmost of the three large Tharsis volcanoes. Extensive lava plains originated from eruptions of this volcano. … Continue reading →

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THEMIS: Faulting in Labeatis Fossae

Posted on June 7, 2019 by rburnham

THEMIS Image of the Day, June 7, 2019. The linear depressions in this VIS image were created by tectonic forces. The sides of the depression are faults. Paired faults will allow the block of material between them to “slide down” … Continue reading →

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THEMIS: Frost-free southern polar cap features

Posted on June 6, 2019 by rburnham

THEMIS Image of the Day, June 6, 2019. This VIS image shows part of the south polar cap. The dark bands are troughs. The multiple layers of dust and ice that comprise the polar cap are visible in the trough … Continue reading →

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THEMIS: Long trough in southern polar cap

Posted on June 5, 2019 by rburnham

THEMIS Image of the Day, June 5, 2019. Today’s VIS image shows part of the south polar cap. This image was taken at the end of southern summer. The dark line running down the image is one of numerous troughs … Continue reading →

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THEMIS: Frost-free (almost) south polar ice cap

Posted on June 4, 2019 by rburnham

THEMIS Image of the Day, June 4, 2019. This VIS image shows part of the surface of the south polar cap. Collected at the end of southern summer, most of the ice is frost free and different textures are readily … Continue reading →

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THEMIS: South polar ice cap canyon

Posted on June 3, 2019 by rburnham

THEMIS Image of the Day, June 3, 2019. Today’s VIS image shows part of the South Pole. Chasma Australe crosses diagonally through the middle of the image. The layers that comprise the polar cap are visible along the sides of … Continue reading →

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THEMIS: Renaudot Crater’s dunes in false color

Posted on May 31, 2019 by rburnham

THEMIS Image of the Day, May 31, 2019. Today’s image shows part of the floor of Renaudot Crater, located on the margin between Terra Sabaea and Utopia Planitia. The small dark blue features at the top right corner of the … Continue reading →

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