Tag Archives: Arizona State University

THEMIS: Dunes in Kaiser Crater

THEMIS Image of the Day, November 23, 2018. This VIS image shows part of the floor of Kaiser Crater, including several sand dunes. Kaiser Crater is located in Noachis Terra. The dunes’ dark tone indicates they are free of dust, … Continue reading

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THEMIS: Swiss-cheese weathering in old volcanic region

THEMIS Image of the Day, November 22, 2018. Amphitrites Patera is an old volcanic complex located south of Hellas Planitia. The surface in this VIS image has a unusual “Swiss-cheese” texture, one seen more commonly on the nearby south polar … Continue reading

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THEMIS: Field of hills in Terra Cimmeria

THEMIS Image of the Day, November 21, 2018. This image is located in Terra Cimmeria. The bright, irregular features are hills. This part of Terra Cimmeria is made up mostly by flat lying plains, with no other hills in the … Continue reading

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THEMIS: Graben and pits in Sirenum Fossae

THEMIS Image of the Day, November 20, 2018. This VIS image is located in Sirenum Fossae near Daedalia Planum. The arc at the bottom of the image is the rim of a crater that was dissected when the tectonic event … Continue reading

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THEMIS: Channel in Coracis Fossae

THEMIS Image of the Day, November 19, 2018. Today’s VIS image shows one of the numerous channel features that dissect the highlands between Solis Planum and Aonia Terra. The linear features in the region include both tectonic graben and fluvial … Continue reading

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THEMIS: Gullies etch a crater rim in Terra Cimmeria

THEMIS Image of the Day, November 16, 2018. Multiple gullies dissect the rim of this unnamed crater in Terra Cimmeria. The soft-looking material at the foot of the rim (where it meets the crater floor) may contain buried ice. See … Continue reading

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THEMIS: Landslide in Terra Sirenum crater

THEMIS Image of the Day, November 15, 2018. A small landslide deposit is visible at the bottom left corner of this VIS image. The landslide is in an unnamed crater in Terra Sirenum. See more THEMIS Images of the Day … Continue reading

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THEMIS: Big dunes and little ones in Russell Crater

THEMIS Image of the Day, November 14, 2018. This VIS image shows part of the floor of Russell Crater, including sand dunes of mulitple sizes. Russell Crater is located in Noachis Terra. Do small dunes merge to become big ones? … Continue reading

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THEMIS: Small channel in Terra Sirenum

THEMIS Image of the Day, November 13, 2018. A small channel system dissects the rim of this unnamed crater in Terra Sirenum. The plains around the crater rim show faint dark streaks, tracks left by dust devils. See more THEMIS … Continue reading

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THEMIS: South polar ice cap textures

THEMIS Image of the Day, November 12, 2018. This VIS image shows part of the south polar cap. This image was collected near the end of the southern spring season. See more THEMIS Images of the Day by geological subject.

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