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Tag Archives: wind erosion
Opportunity report, Sol 4925, by A.J.S. Rayl, The Planetary Society
December 1, 2017: Opportunity Returns Fundamental Finding in Perseverance, Cruises Through Winter Solstice: Opportunity continued the historic winter science campaign inside Perseverance Valley and delivered the goods that confirmed an important discovery in November, and then cruised through winter solstice, … Continue reading
Posted in Reports
Tagged Cape Byron, Endeavour Crater, La Bajada, Mars Exploration Rover, MER, Mesilla, NASA, Opportunity, Perseverance Valley, wind erosion
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HiRISE: Yardangs – nature’s weathervanes
The prominent tear-shaped features in this image are erosional features called yardangs. Yardangs are composed of sand grains that have clumped together and have become more resistant to erosion than their surrounding materials. As the winds of Mars blow and … Continue reading
Posted in Reports
Tagged Elysium Planitia, High Resolution Imaging Science Experiment, HiRISE, Mars Reconnaissance Orbiter, MRO, NASA, University of Arizona, wind erosion, yardangs
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THEMIS: Rough-textured ridge in Melas Chasma
THEMIS Image of the Day, November 29, 2017. This VIS image shows part of a large ridge of material near the south central part the canyon. The roughest looking material is the top of the ridge. Wind may also have … Continue reading
Posted in Reports
Tagged Arizona State University, ASU, buttes, layered deposits, Mars Odyssey, Melas Chasma, NASA, THEMIS, THEMIS Image of the Day, Thermal Emission Imaging System, Valles Marineris, wind erosion, yardangs
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Opportunity: 10 feet back upslope
Sol 4890, October 26, 2017. Seeking to examine some rocks upslope from Opportunity’s last position, scientists drove the rover about 10 feet back. This places the front of the rover where the instrument arm can work on a target area … Continue reading
Posted in Reports
Tagged Cape Byron, Endeavour Crater, Mars Exploration Rover, MER, NASA, Opportunity, Perseverance Valley, ventifacts, wind erosion
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HiRISE: A highly disrupted crater
This 2.5-kilometer diameter crater has been significantly altered from the usual bowl-shaped appearance we associate with craters. Material has covered significant portions of the ejecta and filled in the crater. This fill material has since been subject to erosion—like boulders … Continue reading
Posted in Reports
Tagged Elysium Planitia, eolian processes, High Resolution Imaging Science Experiment, HiRISE, Mars Reconnaissance Orbiter, MRO, NASA, University of Arizona, volcanics, wind erosion
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THEMIS: Wind erosion on Hebes Mensa
THEMIS Image of the Day, August 17, 2017. The large mesa in the center of Hebes Chasma dominates this image. The top of the mesa is at the center of the image, with the cliff faces to the top and … Continue reading
Posted in Reports
Tagged Arizona State University, ASU, eolian processes, Hebes Chasma, Hebes Mensa, Mars Odyssey, NASA, THEMIS, THEMIS Image of the Day, Thermal Emission Imaging System, Valles Marineris, wind erosion
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HiRISE: Bedrock outcrops in Kaiser Crater
This enhanced-color image shows a patch of well-exposed bedrock on the floor of Kaiser Crater. The wind has stripped off the overlying soil, and created grooves and scallops in the bedrock. The narrow linear ridges are fractures that have been … Continue reading
Posted in Reports
Tagged bedrock, eolian processes, High Resolution Imaging Science Experiment, HiRISE, Kaiser Crater, Mars Reconnaissance Orbiter, MRO, NASA, University of Arizona, wind erosion
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THEMIS: Yardangs in Memnonia Sulci
THEMIS Image of the Day, January 9, 2017. Today’s VIS image shows some of the extensive wind etched terrain in Memnonia Sulci, located south west of Olympus Mons. The linear ridges are called yardangs and form by wind removal of … Continue reading
Posted in Reports
Tagged Arizona State University, ASU, Mars Odyssey, Memnonia Sulci, NASA, THEMIS, THEMIS Image of the Day, Thermal Emission Imaging System, wind erosion, yardangs
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Opportunity: Pancam checks Spirit Mound
Sol 4502, September 22, 2016. Above is a Pancam composite showing part of Spirit Mound and one of the small rocky “ridges” leading away from it. Pancam took a fully filtered set of images for the two leftmost frames (false-colored … Continue reading
Posted in Reports
Tagged Cape Tribulation, Endeavour Crater, eolian processes, Mars Exploration Rover, MER, NASA, Opportunity, Spirit Mound, ventifacts, wind erosion
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THEMIS: Geological jumble in Terra Sirenum
THEMIS Image of the Day, September 1, 2016. Today’s false color image shows part of the plains of Terra Sirenum near Sirenum Fossae. The THEMIS camera contains 5 filters. The data from different filters can be combined in mulitple ways to … Continue reading
Posted in Reports
Tagged Arizona State University, ASU, crater ejecta, Mars Odyssey, NASA, Terra Sirenum, THEMIS, THEMIS Image of the Day, Thermal Emission Imaging System, wind erosion, wind streaks
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