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- CRISM: Compact Reconnaissance Imaging Spectrometer for Mars
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- THEMIS: Thermal Emission Imaging System
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Tag Archives: craters
Pitted deposits in Mars craters point to subsurface ice
Studies of pitted deposits in crater floors appear to indicate that subsurface ice has been more widespread on Mars than previously thought. That’s the conclusion of a team of reseachers led by Livio Tornabene (University of Western Ontario), who reported … Continue reading
Water-carved channels on crater debris
Medium-size craters less than 3 billion years old often show water-carved channels in their debris aprons, according to a new study of mid-latitude craters in Arabia Terra. Previous studies had reported that such features on ejecta aprons were rare. Nicolas … Continue reading
Posted in Reports
Tagged Context Camera, craters, CTX, ejecta, fluvial landforms, High Resolution Stereo Camera, HRSC, Mars Express, Mars Reconnaissance Orbiter, water
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Mini pedestal craters suggest tropical ice deposits
Craters surrounded by debris aprons that stand above the surrounding surface are known as pedestal craters. Scientists think the slab-like apron of ejecta around such craters covers layers that are rich in water ice. Nearly all pedestal craters found so … Continue reading
Posted in Reports
Tagged climate change, craters, Daedalia Planum, HiRISE, ice, Mars Reconnaissance Orbiter, pedestal craters
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Airblast avalanches
The aerial blast wave from a meteorite impact can trigger dust avalanches in the vicinity, says a new paper published in Icarus. A group of scientists led by Kaylan Burleigh (University of Arizona) reached this conclusion after studying a cluster … Continue reading
Posted in Reports
Tagged airblast, craters, dust, dust avalanches, HiRISE, impacts, Mars Reconnaissance Orbiter, Medusae Fossae Formation, meteorites, slope streaks
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High ground on Cape York rim segment named Shoemaker Ridge
Scientists with the Mars Exploration Rover Opportunity have given the name of Shoemaker Ridge to the highest “spine” of the Cape York segment of Endeavour Crater’s rim. The rover arrived at Cape York in early August and has been exploring … Continue reading
Posted in Reports
Tagged craters, Endeavour Crater, Mars Exploration Rovers, MER, Meridiani Planum, Opportunity, Shoemaker Ridge
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Down in the deltas
Although NASA passed over Eberswalde Crater to choose Gale Crater as the landing site for the Mars Science Laboratory (MSL), Eberswalde offers the best known example on Mars of a river delta built from sediment washed into a crater lake. … Continue reading
Posted in Reports
Tagged craters, deltas, Eberswalde Crater, HiRISE, Holden Crater, Mars Reconnaissance Orbiter, MRO
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How often does Mars get whacked?
Or — to pose this question more usefully — what’s the rate of crater-making impacts on Mars as compared to, say, the Moon? Why the Moon? Because it’s the one extraterrestrial body for which scientists have both a long visible … Continue reading
Posted in Reports
Tagged asteroid belt, asteroids, cratering rate, craters, dating, impacts, meteorites, Moon, Moon-Mars cratering scaling factor
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Peeking into a stacked deck
No one is planning to send a Mars rover into the high latitudes (north or south) anytime soon, but if a paper in Icarus (June 2011) by Seth J. Kadish and James W. Head (both Brown University) is correct, scientists … Continue reading
Posted in Reports
Tagged climate change, craters, dust, ice, impacts, pedestal craters, polar layered deposits
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