Tag Archives: THEMIS Image of the Day

THEMIS: Cerberus Fossae and Tartarus Montes

Posted on July 25, 2019 by rburnham

THEMIS Image of the Day, July 25, 2019. Today’s VIS image shows part of Cerberus Fossae. These large graben cut across the Tartarus Montes in Elysium Planitia. A graben forms when large blocks of material slide downward between paired faults … Continue reading →

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THEMIS: Bahram Vallis channel

Posted on July 24, 2019 by rburnham

THEMIS Image of the Day, July 24, 2019. Bahram Vallis crosses this VIS image. Bharam Vallis drains from the higher elevations of Lunae Planum into the Chryse Planitia basin. At the base of several of the scalloped channel wall sections, … Continue reading →

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THEMIS: North polar layers and sand dunes

Posted on July 23, 2019 by rburnham

THEMIS Image of the Day, July 23, 2019. Today’s VIS image shows part of the north polar cap, as well as sand dunes located on the floor of a polar trough. The north polar cap is surrounded by numerous dune … Continue reading →

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THEMIS: Layers in the north polar ice cap

Posted on July 22, 2019 by rburnham

THEMIS Image of the Day, July 22, 2019. Millions of years of alternating seasons have created the north polar cap. Ice is laid down during the winter and dust coats the ice in summer. The ice/dust cycle creates layers as … Continue reading →

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THEMIS: Patterns on patterns in the Olympia Undae dunes

Posted on July 19, 2019 by rburnham

THEMIS Image of the Day, July 19, 2019. Today’s VIS image shows a small portion of Olympia Undae. Olympia Undae is a large dune field that dominates the plains along part of the north polar cap. This image was collected … Continue reading →

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THEMIS: Channels on the edge of Arabia Terra

Posted on July 18, 2019 by rburnham

THEMIS Image of the Day, July 18, 2019. This VIS image is located on the margin of Arabia Terra and Acidalia Planitia. The channel features were created by fluids running from the highland of Arabia Terra into the lower elevations … Continue reading →

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THEMIS: Hephaestus Fossae’s enigmatic channels

Posted on July 17, 2019 by rburnham

THEMIS Image of the Day, July 17, 2019. This VIS image is located in the central portion of Hephaestus Fossae. Hephaestus Fossae is a complex channel system in Utopia Planitia near Elysium Mons. It has been proposed that the channel … Continue reading →

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THEMIS: Wind-etched ground near Gordii Dorsum

Posted on July 16, 2019 by rburnham

THEMIS Image of the Day, July 16, 2019. Wind is one of the remaining active processes altering the surface of Mars. In regions of long term unidirectional winds, the dust and sand is winnowed away. In places with poorly cemented … Continue reading →

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THEMIS: Hills of Arena Colles

Posted on July 15, 2019 by rburnham

THEMIS Image of the Day, July 15, 2019. Today’s VIS image shows part of Arena Colles. The term colles means hills. Arena Colles is located on the margin where Terra Sabaea steps down in elevation into Utopia Planitia. Explore more … Continue reading →

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THEMIS: Edge of the caldera on Ascraeus Mons

Posted on July 12, 2019 by rburnham

THEMIS Image of the Day, July 12, 2019. Today’s VIS image is located on the summit of Ascraeus Mons, one of the three large Tharsis region volcanoes. This image clips just the edge of the large summit caldera. Explore more … Continue reading →

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