Tag Archives: Mars Odyssey

THEMIS: Cracks across Margaritifer Terra plains

THEMIS Image of the Day, March 13, 2017. Today’s false color image shows part of the plains of Margaritifer Terra, cracked by geological faulting. The THEMIS VIS camera contains 5 filters. The data from different filters can be combined in … Continue reading

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THEMIS: Terra Cimmeria’s sand traps

THEMIS Image of the Day, March 10, 2017. This infrared image covers a large swath of Terra Cimmeria, including numerous craters with dunes and dune fields on their floors, as well as dunes located on the plains between craters. Dunes … Continue reading

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THEMIS: Warm dunes glowing in Kaiser Crater

THEMIS Image of the Day, March 9, 2017. This is an infrared image of Kaiser Crater and the dune field on the crater floor. Brighter tones in the image are warmer surfaces. The basaltic dunes are dark in the visible, … Continue reading

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THEMIS: Waves of dunes on Proctor Crater floor

THEMIS Image of the Day, March 8, 2017. This VIS image shows the large dune field located on the floor of Proctor Crater in Noachis Terra. More THEMIS Images of the Day by geological topic.

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THEMIS: Active sand dunes in Sirenum crater

THEMIS Image of the Day, March 6, 2017. Today’s VIS image shows a field of dunes on the floor of an unnamed crater in Terra Sirenum. Their dark color indicates they are dust-free and suggests that the dune sands are … Continue reading

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THEMIS: Dust devil scrawls in Aonia Terra

THEMIS Image of the Day, March 6, 2017. This VIS image show dust devil tracks in Aonia Terra. As the dust devil moves along the surface it scours the dust and fine materials away, revealing the darker rocky surface below … Continue reading

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THEMIS: South polar cap layers

THEMIS Image of the Day, March 3, 2017. This VIS image shows the layering of the South Polar cap of Mars. The image is located at the margin between the cap ice and the surrounding plains (bottom of image). More … Continue reading

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THEMIS: Channels of Nirgal Vallis

THEMIS Image of the Day, March 2, 2017. This VIS image shows a portion of Nirgal Vallis. A tributary of the channel is seen on the left side of the image, with the main channel crossing the image from left … Continue reading

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THEMIS: Tapestry of once-molten rock

THEMIS Image of the Day, March 1, 2017. This VIS image shows a portion of Daedalia Planum, an extensive volcanic plain comprised of flows from Arsia Mons. Different flow surface textures help delineate different flows. (This image was taken shortly … Continue reading

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THEMIS: Hills of Ariadnes Colles

THEMIS Image of the Day, February 28, 2017. This VIS image shows part of Ariadnes Colles. The term colles means hills. The hills in this image are much brighter than the surroundings, possibly due to erosion or removal of the … Continue reading

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