Tag Archives: Mars Odyssey

THEMIS: Pavonis Mons flank meets volcanic plains

Posted on July 4, 2018 by rburnham

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

Posted on July 3, 2018 by rburnham

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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THEMIS: Utopian dust devil tracks

Posted on July 2, 2018 by rburnham

THEMIS Image of the Day, July 2, 2018. Today’s VIS image shows dust devil tracks in Utopia Planitia. The tracks occur where dust devils have scoured the fine materials off the underlying surface. In some cases dust devils can create … Continue reading →

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THEMIS: Wind etching of soft sediments

Posted on June 29, 2018 by rburnham

THEMIS Image of the Day, June 29, 2018. In regions of poorly cemented surface materials it is possible to create large features due to just the action of the wind. The equatorial region between Olympus Mons and Apollinaris Mons is … Continue reading →

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THEMIS: Faulting and landslides in Tithonium Chasma

Posted on June 28, 2018 by rburnham

THEMIS Image of the Day, June 28, 2018. This VIS image shows the eastern edge of Tithonium Chasma, one of the large valley systems that comprise Valles Marineris. Large fractures are visible on the upper margin of the chasma. Downward … Continue reading →

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THEMIS: Aram Chaos’ crumbling mesas

Posted on June 27, 2018 by rburnham

THEMIS Image of the Day, June 27, 2018. In this VIS image of part of Aram Chaos, the surface region is being dissected by linear valleys. As the dissection continues individual mesas will develop, creating the terrain termed chaotic. The … Continue reading →

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THEMIS: Collapsing ground in Margaritifer Chaos

Posted on June 26, 2018 by rburnham

THEMIS Image of the Day, June 26, 2018. Today’s VIS image shows a small section on Margaritifer Chaos. The term chaos is applied to regions where the surface is being eroded to form mesas. As the surface processes continue individual … Continue reading →

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THEMIS: Yardangs on Gale Crater’s Mt. Sharp

Posted on June 25, 2018 by rburnham

THEMIS Image of the Day, June 25, 2018. While far from the rover, this VIS image of Gale Crater covers the same central layered deposit, Mt. Sharp, that Curiosity is studying. The linear ridges, called yardangs, are the result of … Continue reading →

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THEMIS: Dark streaks on slopes — wet or dry?

Posted on June 22, 2018 by rburnham

THEMIS Image of the Day, June 22, 2018. Located on the rim of Chia Crater, this smaller crater contains a multitude of dark slope streaks. These features are assumed to represent down slope movements of material, either a process that … Continue reading →

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THEMIS: The bumpy hills of Arcadia Planitia

Posted on June 21, 2018 by rburnham

THEMIS Image of the Day, June 21, 2018. The hills in this VIS image are part of mound located in Arcadia Plantia. Just west of these hills is a long region of grouped hills called Phlegra Montes. The soft contours, … Continue reading →

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