Tag Archives: Mars Odyssey

THEMIS: Chryse Chaos

Posted on September 6, 2019 by rburnham

THEMIS Image of the Day, September 6, 2019. This VIS image shows part of Chryse Chaos near the terminal end of the huge outflow channels draining from Valles Marineris into the Chyrse Basin. Chaos terrain is typified by regions of … Continue reading →

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THEMIS: Chaos in Morava Valles

Posted on September 5, 2019 by rburnham

THEMIS Image of the Day, September 5, 2019. Located in Margaritifer Terra, Morava Valles is one of several channels that empty northward towards Chryse Planitia. Chaos terrain is typified by regions of blocky, often steep sided, mesas interspersed with deep … Continue reading →

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THEMIS: Patterns on patterns in Olympia Undae

Posted on September 4, 2019 by rburnham

THEMIS Image of the Day, September 4, 2019. Today’s VIS image shows part of Olympia Undae, the largest of several dune fields that encircle the north polar cap. (It is also known as the north polar sand sea.) This image … Continue reading →

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THEMIS: Elysium Fossae

Posted on September 3, 2019 by rburnham

THEMIS Image of the Day, September 3, 2019. This VIS image is located west of Elysium Mons in the region called Elysium Fossae. The fossae are comprised of both linear and sinuous channels, usually interpreted to have both fluid and … Continue reading →

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THEMIS: Wind-blown debris in channel

Posted on September 2, 2019 by rburnham

THEMIS Image of the Day, September 2, 2019. Several named and unnamed channels are located south of the Medusae Fossae Formation on the margin with Terra Sirenum. One of the unnamed channels is visible in the lower half of this … Continue reading →

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THEMIS: Cerberus Fossae graben

Posted on August 30, 2019 by rburnham

THEMIS Image of the Day, August 30, 2019. The linear depressions at the top of the VIS image are some of the graben that comprise Cerberus Fossae. Graben form where extensional tectonic forces allows blocks of material to subside between … Continue reading →

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THEMIS: Naktong Vallis in Terra Sabaea

Posted on August 29, 2019 by rburnham

THEMIS Image of the Day, August 29, 2019. Today’s VIS image shows a section of Naktong Vallis. Naktong Vallis is located in Terra Sabaea. Explore more THEMIS Images of the Day by geological subject.

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THEMIS: Medusae Fossae formation yardangs

Posted on August 28, 2019 by rburnham

THEMIS Image of the Day, August 28, 2019. Yardangs are present at the top of this VIS image. These features are created by long term winds scouring a poor cemented surface material into linear ridges and valleys. These yardangs are … Continue reading →

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THEMIS: Pits & channels in Arabia Terra

Posted on August 27, 2019 by rburnham

THEMIS Image of the Day, August 27, 2019. The pits and channels in the VIS image are located along the margin between Arabia Terra and Acidalia Planitia. Arabia Terra is one of the oldest surface regions on Mars and contains … Continue reading →

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THEMIS: Lava ridge on flank of Pavonis Mons

Posted on August 26, 2019 by rburnham

THEMIS Image of the Day, August 26, 2019. Today’s VIS image shows lava flows near the flank of Pavonis Mons. Pavonis Mons is one of the three large aligned Tharsis region volcanoes. At top is a fine example of a … Continue reading →

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