Tag Archives: Mars Odyssey

THEMIS: Eroding crater infill in Noachis Terra

THEMIS Image of the Day, January 15, 2019. At several locations in the southern hemisphere there are craters that have been filled with material almost to the top of the crater rim. What the material is and where it came … Continue reading

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THEMIS: Interweaving gullies in Kaiser Crater

THEMIS Image of the Day, January 14, 2019. Today’s VIS image shows part of the inner rim of Kaiser Crater. The rim has been dissected by numerous gullies. Kaiser Crater is located in Noachis Terra. See more THEMIS Images of … Continue reading

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THEMIS: Central peaks of Hale Crater

THEMIS Image of the Day, January 11, 2019. Today’s VIS image shows part of the floor of Hale Crater and the elongate axis of the central peak mountains. Hale Crater is an example of an oblique impact crater. The mountain … Continue reading

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THEMIS: Tectonics meets volcanism in Claritas Fossae

THEMIS Image of the Day, January 10, 2019. This VIS image shows part of Claritas Fossae. The linear features (fossae) are faults. This region of Mars had very active tectonism and volcanism, resulting in the huge volcanos like Arsia Mons … Continue reading

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THEMIS: Something odd in Noachis Terra

THEMIS Image of the Day, January 9, 2019. This VIS image shows a portion of Noachis Terra to the northeast of Argyre Planitia. In the middle of the image is an unnamed crater that is not even close to being … Continue reading

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THEMIS: Maunder Crater’s gullies and landslides

THEMIS Image of the Day, January 8, 2019. Today’s VIS image shows part of the eastern side of Maunder Crater. This crater has a unique form, with a large amount of fill on the eastern half of the crater floor, … Continue reading

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THEMIS: South polar ice cap layers

THEMIS Image of the Day, January 7, 2019. Today’s VIS image shows a small part of the south polar cap. The layering of the cap is easy to see. The layers record the seasonal deposition of dust and ice over … Continue reading

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THEMIS: Tectonic scars in Sirenum Fossae

THEMIS Image of the Day, January 4, 2019. The linear features in this VIS image are graben called Sirenum Fossae. Graben are formed when blocks of material move downward between parallel faults. The faults were created by tectonic stresses in … Continue reading

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THEMIS: Terra Sirenum crater dunes

THEMIS Image of the Day, January 3, 2019. Dark dunes fill part of the floor of this unnamed crater in Terra Sirenum. There are numerous gullies on the rim of the crater. Winds are moving the sand towards the upper … Continue reading

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THEMIS: Dust devil tracks in Promethei Terra

THEMIS Image of the Day, January 2, 2019. This VIS image shows a region dense with dust devil tracks (and several pedestal craters). Located in Promethei Terra, these tracks run parallel to the nearby southeastern margin of Hellas Planitia. The … Continue reading

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