Tag Archives: Mars Odyssey

THEMIS: Winding channels of Elysium Fossae

THEMIS Image of the Day, July 16, 2018. Today’s VIS image shows part of one of the Elysium Fossae on the western flank of the Elysium volcanic complex. The fossae have both a tectonic and volcanic origin. The linear fractures, … Continue reading

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THEMIS: Slide debris and layered deposits in Ophir Chasma

THEMIS Image of the Day, July 13, 2018. Today’s VIS image shows part of Ophir Chasma. Ophir Chasma is part of Valles Marineris, the largest canyon system on Mars. At the top of the image is a portion of a … Continue reading

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THEMIS: Where the volcanic mountain meets the volcanic plains

THEMIS Image of the Day, July 12, 2018. Olympus Rupes is the name of the large escarpment surrounding Olympus Mons. The escarpment is a cliff where there is a large elevation change over a short distance. This VIS image is … Continue reading

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THEMIS: Daedalia Planum’s lava flows

THEMIS Image of the Day, July 11, 2018. The lava flows in this VIS image originate at Arsia Mons. Arsia Mons in the southermost of the three large Tharsis volcanoes. More THEMIS Images of the Day by geological topic.

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THEMIS: Giant pit crater collapse on Alba Mons

THEMIS Image of the Day, July 10, 2018. This VIS image is located on the eastern flank of Alba Mons. Linear faults and graben surround the volcano aligned north/south, intersecting and deflected around the summit. The large graben is called … Continue reading

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THEMIS: Flood-scoured island-mesa in Kasei Valles

THEMIS Image of the Day, July 9, 2018. Today’s VIS image is located near the beginning of Kasei Valles. At the top of the image is the relative high land of Lunae Planum. The Kasei Valles channel is just below. … Continue reading

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THEMIS: Active dunes and possible glacier flow

THEMIS Image of the Day, July 6, 2018. This VIS image is located on the floor of an unnamed crater between Terra Sabaea and Utopia Planitia. The center of the image contains several regions of sand dunes. The dunes occupy … Continue reading

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THEMIS: Flows upon flows on Olympus Mons

THEMIS Image of the Day, July 5, 2018. The lava flows seen in the VIS image are located on the northeastern flank of Olympus Mons. The lavas flowed from the lower left side of the image to the upper right, … Continue reading

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THEMIS: Pavonis Mons flank meets volcanic plains

THEMIS Image of the Day, July 4, 2018. Today’s VIS image is of the eastern flank of Pavonis Mons where the volcano meets the surrounding volcanic plains. The arced features towards the top of the image are fractures and lava … Continue reading

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THEMIS: Terra Sabaea lava tube turned into an open channel

THEMIS Image of the Day, July 3, 2018. This VIS image is located in Terra Sabaea near the margin of Syrtis Major Planum. The channel-like feature in the bottom of the image is an unnamed feature. There is a high … Continue reading

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