Tag Archives: THEMIS Image of the Day

THEMIS: Scamander Vallis’ winding course

Posted on July 11, 2019 by rburnham

THEMIS Image of the Day, July 11, 2019. Today’s VIS image shows a section of Scamander Vallis. Scamander Vallis is located in northern Terra Sabaea. Explore more THEMIS Images of the Day by geological subject.

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THEMIS: Wind-etched sediments in Gordii Dorsum

Posted on July 10, 2019 by rburnham

THEMIS Image of the Day, July 10, 2019. The most common active process affecting the surface of Mars today is erosion by the wind. In areas of poorly cemented surface materials, the effect is more easily seen. This image near … Continue reading →

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THEMIS: Radial crater ejecta in Utopia

Posted on July 9, 2019 by rburnham

THEMIS Image of the Day, July 9, 2019. Today’s VIS image shows part of an unnamed crater in Utopia Planitia. The ejecta surrounding the crater rim shows both layering and radial grooves. These features formed during the impact event. Explore … Continue reading →

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THEMIS: Hills and graben in Cerberus Fossae

Posted on July 8, 2019 by rburnham

THEMIS Image of the Day, July 8, 2019. The two linear depressions at the bottom of today’s VIS image are part of Cerberus Fossae. The features are termed graben and are formed by crustal extension that allows material to subside … Continue reading →

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THEMIS: Unusual feature in Arabia Terra crater

Posted on July 5, 2019 by rburnham

THEMIS Image of the Day, July 5, 2019. Today’s VIS image shows a complex block of material located on the floor of an unnamed crater in Arabia Terra. The feature is offset from the center of the circular depression and … Continue reading →

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THEMIS: Labeatis Fossae in Tempe Terra

Posted on July 4, 2019 by rburnham

THEMIS Image of the Day, July 4, 2019. The linear depressions in this VIS image are graben called Labeatis Fossae. Graben are formed when extension between paired faults causes the material to move downward. These are part of a general … Continue reading →

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THEMIS: Splashy ejecta from Tooting Crater

Posted on July 3, 2019 by rburnham

THEMIS Image of the Day, July 3, 2019. Today’s VIS image shows part of the ejecta blanket of Tooting Crater. Named for London suburb, Tooting Crater is a large, relatively fresh impact crater located west of Olympus Mons. (For more … Continue reading →

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THEMIS: Streamlined islands in Athabasca Valles

Posted on July 2, 2019 by rburnham

THEMIS Image of the Day, July 2, 2019. This VIS image shows part of the channel called Athabasca Valles. Several streamlined islands are visible at the top of the image. The source of the flood was likely an outburst of … Continue reading →

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THEMIS: Arsia Mons faults, graben, and pit craters

Posted on July 1, 2019 by rburnham

THEMIS Image of the Day, July 1, 2019. Today’s VIS image is located on the lower flank of Arsia Mons. The linear features are tectonic faults. The lava flows originating from Arsia Mons are among the youngest on the surface … Continue reading →

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Curiosity’s ‘methane mystery’ continues

Posted on June 28, 2019 by rburnham

[Ed. note: original June 23, 2019, story updated on June 24] Curiosity’s team conducted a follow-on methane experiment this past weekend. The results came down early Monday morning: The methane levels have sharply decreased, with less than 1 part per … Continue reading →

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