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Tag Archives: gullies
HiRISE image: Delicate beauty
Beuatiful Mars series: Delicate beauty. More Beautiful Mars images.
Posted in Reports
Tagged Beautiful Mars, gullies, High Resolution Imaging Science Experiment, HiRISE, Mars Reconnaissance Orbiter, mass wasting, MRO, NASA, University of Arizona
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HiRISE image: active dune gullies in Kaiser Crater
Active dune gullies in Kaiser Crater. More HiRISE images.
Posted in Reports
Tagged dunes, gullies, High Resolution Imaging Science Experiment, HiRISE, Kaiser Crater, Mars Reconnaissance Orbiter, MRO, NASA, sand dunes, University of Arizona
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HiRISE image: giant gullies north of the Argyre impact basin
This image shows gullies that are large even by Mars standards, and much larger than the terrestrial landforms we call gullies. The length of some of these is over 6 kilometers (3.6 miles). They are located on large mountains located … Continue reading
Posted in Reports
Tagged Argyre Planitia, gullies, HiRISE, Mars Reconnaissance Orbiter, MRO
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Dry ice slabs carve linear grooves down Mars dunes
The “megadune” in Russell Crater features linear grooves or gullies a few meters wide, a meter or two deep, and roughly a kilometer or two long.
Posted in Reports
Tagged atmosphere, CO2 ice, dunes, grooves, gullies, HiRISE, linear gullies, Russell Crater
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Wet debris flows carved (some) Mars dune gullies
Located west of the big Hellas impact basin in Mars’ southern hemisphere, Russell Crater spreads 135 kilometers (84 miles) wide. A notable feature within it is a broad dune field with a “megadune” heaped up toward the east. The megadune … Continue reading
Posted in Reports
Tagged dunes, gullies, HiRISE, Mars Reconnaissance Orbiter, Russell Crater, water
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Seasonal changes seen in south polar gullies
Images from the HiRISE camera on NASA’s Mars Reconnaissance Orbiter have captured the first visible evidence for seasonal changes in gullies on slopes in the south polar region of Mars. Giving a report (PDF) at the 43rd Lunar and Planetary … Continue reading
Polar gullies erode from carbon dioxide flows
Gullies on Martian slopes form by flowing water, most probably trickles of snowmelt or groundwater. But what about the gullies found in places such as the high latitudes and polar regions where temperatures never rise above the freezing point for … Continue reading
Seasonal flows of water on Mars
Finding water on Mars is nothing new. Scientists have known for years that water (as ice) lies in the polar caps and underground in high latitudes. However images from the High Resolution Imaging Science Experiment (HiRISE) camera on NASA’s Mars … Continue reading
Posted in Reports
Tagged brines, carbon dioxide, gullies, HiRISE, Mars Reconnaissance Orbiter, recurring slope lineae, RSL, water
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