Tag Archives: Mars Odyssey

THEMIS: False-color craters and plains in Terra Cimmeria

THEMIS Image of the Day, August 31, 2018. Today’s false color image shows several craters and plains of Terra Cimmeria. The THEMIS VIS camera contains 5 filters. The data from different filters can be combined in multiple ways to create … Continue reading

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THEMIS: False-color dunes in Proctor Crater

THEMIS Image of the Day, August 30, 2018. Today’s false-color image shows the floor of Proctor Crater, including the large dune field. Basaltic sands are typically blue in false-color images. Proctor Crater is located in Noachis Terra. The THEMIS VIS … Continue reading

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THEMIS: Pits and channels on Ascraeus Mons

THEMIS Image of the Day, August 28, 2018. This VIS image shows a portion of the northern flank of Ascreaus Mons. Multiple linear depressions cut across the surface lava flows, having formed after the surface in this region. The chains … Continue reading

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THEMIS: Wind streaks in Terra Sirenum

THEMIS Image of the Day, August 28, 2018. This VIS image shows a small region in Terra Sirenum. The bright material forming “tails” behind the craters were created by surface winds funneled over and around the crater. The raised rims … Continue reading

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THEMIS: Impact crater on volcanic plains

THEMIS Image of the Day, August 23, 2018. This VIS image shows an unnamed crater located northeast of Ascraeus Mons, on the volcanic plains of the Tharsis region. The rim has several concentric ridges. There are multiple layers of ejecta, … Continue reading

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THEMIS: Channels in volcanic ash

THEMIS Image of the Day, August 22, 2018. Tyrrhenus Mons is one of the oldest martian volcanoes and Tyrrhena Fossae is the largest of the channels dissecting the volcano. As well as being one of the oldest volcanoes, it is … Continue reading

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THEMIS: Sand dunes in Russell Crater

THEMIS Image of the Day, August 21, 2018. The large complex dune form in this VIS image is located on the floor of Russell Crater. Russell Crater is in Noachis Terra. (Features may look odd because sunlight is coming from … Continue reading

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THEMIS: Big step-off at Olympus Rupes

THEMIS Image of the Day, August 20, 2018. Olympus Rupes is the name of the large escarpment surrounding Olympus Mons. The escarpment is a cliff where there is a large elevation change over a short distance. The elevation change from … Continue reading

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THEMIS: Wind-driven blowouts in Eumenides Dorsum

THEMIS Image of the Day, August 17, 2018. Eumenides Dorsum is a large linear rise located in southern Amazonis Planitia. Erosion by wind action is prevalent in this region. The horseshoe shaped depressions, called blowouts, indicate the major wind direction … Continue reading

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THEMIS: Channel flow in Sacra Fossae

THEMIS Image of the Day, August 16, 2018. The right-angle intersection of the depressions in this VIS image is one of the graben that form Sacra Fossae. The fossae are located on Sacra Mensa, near the beginning of Kasei Valles. … Continue reading

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