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Tag Archives: craters
THEMIS: More Olympia Undae
THEMIS Image of the Day, March 28, 2016. The arc shaped feature at the bottom of this VIS image is the remaining rim of a crater. The dunes of Olympia Undae have surrounded the rim and small individual dunes are … Continue reading
Posted in Reports
Tagged Arizona State University, ASU, craters, dunes, Mars Odyssey, NASA, north polar sand sea, Olympia Undae, sand dunes, THEMIS, Thermal Emission Imaging System
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THEMIS: Crater – false color
THEMIS Image of the Day, March 7, 2016. Today’s false color image shows an unnamed crater in Terra Sabaea. The THEMIS camera contains 5 filters. The data from different filters can be combined in multiple ways to create a false … Continue reading
Posted in Reports
Tagged Arizona State University, ASU, color, craters, Mars Odyssey, NASA, Terra Sabaea, THEMIS, Thermal Emission Imaging System
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HiRISE: Crater with fractured light-toned material
Small crater with well-exposed and fractured light-toned material. Beautiful Mars series.
Posted in Reports
Tagged Beautiful Mars, craters, High Resolution Imaging Science Experiment, HiRISE, Mars Reconnaissance Orbiter, MRO, NASA, University of Arizona
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THEMIS: Concentric rims
THEMIS Image of the Day, January 19, 2016. This VIS image shows an unnamed crater near Acheron Fossae. The structure of this crater includes a central pit and several concentric rims. Radial grooves can be seen on the ejecta blanket … Continue reading
Posted in Reports
Tagged Arizona State University, ASU, central peaks, complex craters, crater ejecta, craters, Mars Odyssey, NASA, radial ejecta, THEMIS, Thermal Emission Imaging System
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HiRISE: Young, fresh crater in Hellespontus
This is a textbook example of a morphologically fresh and simple impact crater. At 1.3 kilometers in diameter, this unnamed crater is only slightly larger than Arizona’s Barringer (aka Meteor) Crater, by about 200 meters. Note the simple bowl shape … Continue reading
Posted in Reports
Tagged craters, Hellespontus, High Resolution Imaging Science Experiment, HiRISE, impacts, Mars Reconnaissance Orbiter, MRO, NASA, University of Arizona
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THEMIS: Rim complexities
THEMIS Image of the Day, January 11, 2016. Today’s VIS image is of an unnamed crater in Chryse Planitia. There are several concentric ridges visible on the right side of this image. These features formed at the time of impact … Continue reading
Posted in Reports
Tagged Arizona State University, ASU, craters, impacts, Mars Odyssey, NASA, THEMIS, Thermal Emission Imaging System
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THEMIS: Crater – false color
THEMIS Image of the Day, January 7, 2016. The THEMIS camera contains 5 filters. The data from different filters can be combined in multiple ways to create a false color image. These false color images may reveal subtle variations of … Continue reading
Posted in Reports
Tagged Acidalia Planitia, Arizona State University, ASU, crater ejecta, craters, Mars Odyssey, NASA, sand, THEMIS, Thermal Emission Imaging System
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HiRISE: Crater on the floor of Uzboi Vallis
Crater on the floor of Uzboi Vallis. Beautiful Mars series.
Posted in Reports
Tagged Beautiful Mars, channels, craters, dunes, High Resolution Imaging Science Experiment, HiRISE, Mars Reconnaissance Orbiter, MRO, NASA, University of Arizona, Uzboi Vallis
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HiRISE: Icy erosion
This image shows an interesting collection of kilometer-scale craters with flat and smooth floors. The craters themselves may be the result of secondary impacts, craters caused by debris from a distant larger impact. Since then, the surface has been significantly … Continue reading
Posted in Reports
Tagged craters, High Resolution Imaging Science Experiment, HiRISE, ice, Mars Reconnaissance Orbiter, MRO, NASA, University of Arizona
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HiRISE: Frost-enhanced landscape
The arc of hills in this image is the rim of an old and infilled impact crater. The sediments that were deposited within the crater have since formed polygonal cracks due to repeated cycles of freezing and thawing. The process … Continue reading
Posted in Reports
Tagged craters, frost, High Resolution Imaging Science Experiment, HiRISE, Mars Reconnaissance Orbiter, MRO, NASA, polygonal terrain, University of Arizona
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