Tag Archives: Arizona State University

THEMIS: False color dunes in Noachis Terra

THEMIS Image of the Day, May 22, 2017. Today’s false color image shows dunes on the floor of an unnamed crater in Noachis Terra. The blue false-color tint suggests the dunes are made of basaltic sand. The THEMIS VIS camera … Continue reading

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THEMIS: Lava tube skylights in Daedalia Planum

THEMIS Image of the Day, May 19, 2017. Today’s VIS image show lava flows in Daedalia Planum that originated from Arsia Mons. At lower right, note the three circular “skylights” — places where the roof of an underground lava tube … Continue reading

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THEMIS: Among the Badlands of Cavi Angusti

THEMIS Image of the Day, May 18, 2017. This is another VIS image showing late afternoon shadows. This image is located in Cavi Angusti, an area of extensive badlands in the southern highlands of Mars. More THEMIS Images of the … Continue reading

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THEMIS: Dunes besiege Terra Sirenum crater

THEMIS Image of the Day, May 17, 2017. Not all Martian sand dunes are located in craters. This VIS image shows dunes located on the plains of Terra Sirenum. More THEMIS Images of the Day by geological topic.

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THEMIS: Sheet of sand dunes in Proctor Crater

THEMIS Image of the Day, May 10, 2017. This VIS image shows a portion of the dune sheet and other dune forms on the floor of Proctor Crater. More THEMIS Images of the Day by geological topic.

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THEMIS: Hale Crater’s central ridge

THEMIS Image of the Day, May 9,. 2017. Rather than a central peak, Hale Crater contains a complex ridge of peaks. This VIS image shows a portion of the ridge. More THEMIS Images of the Day by geological topic.   … Continue reading

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THEMIS: Fragments of a climate history book

THEMIS Image of the Day, May 8, 2017. Today’s VIS image shows layered material near the south polar cap. Such layers contain a detailed, if partial, history of the martian climate. Scientists would love to read this “book,” however fragmentary, … Continue reading

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THEMIS: Dune sheet in Proctor Crater

THEMIS Image of the Day, May 5, 2017. Today’s false color image shows part of the sand sheet with surface dune forms located on the floor of Proctor Crater. Proctor Crater is located in Noachis Terra. The THEMIS VIS camera … Continue reading

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THEMIS: Rough rim on Horowitz Crater

THEMIS Image of the Day, May 4, 2017. Today’s false color image shows part of the northern rim of Horowitz Crater, which is located in Terra Cimmeria. The THEMIS VIS camera contains 5 filters. The data from different filters can … Continue reading

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THEMIS: Tectonics in Sirenum Fossae

THEMIS Image of the Day, May 3, 2017. Today’s false color image shows part of Sirenum Fossae. The linear depressions in this image, called graben, were formed by tectonic activity. The THEMIS VIS camera contains 5 filters. The data from … Continue reading

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