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Tag Archives: LPSC 2012
Big pile in Gale Crater
Gale Crater, the landing site for NASA’s Mars Science Laboratory rover (named Curiosity), contains a 5-kilometer (3-mile) high stack of sediments that was the reason for sending the the rover there. How did the giant mound form? Dirty snow and … Continue reading
Posted in Reports
Tagged climate change, Curiosity, dust, Gale Crater, ice, LPSC 2012, Mars Science Laboratory, MSL, rover
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Hidden valley at the north pole
The north polar cap of Mars has a wide, deep trough called Chasma Boreale that slices into the polar cap for 560 kilometers (350 miles). The floor of the chasma exposes a layer of sand and dust cemented with water … Continue reading
Posted in Reports
Tagged climate, climate change, LPSC 2012, Mars Express, Mars Reconnaissance Orbiter, MARSIS, north polar ice cap, polar layered deposits, SHARAD
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How old is Meridiani Planum?
The smooth, flat plain where Mars rover Opportunity landed in January 2004 looks spookily empty. Only a few rocks and meteorites, plus foot-high sand dunes and ripples, break the endless vista under a clear tawny sky. How long has the … Continue reading
Posted in Reports
Tagged craters, Endeavour Crater, HiRISE, LPSC 2012, Mars Exploration Rovers, Meridiani Planum, Opportunity, wind
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Slope streaks not becoming more common; survive for decades
Slope streaks are dark lines that run down dusty slopes on Mars; scientists explain them as dust avalanches touched off by rockfalls or some similar trigger. (Slope streaks differ in nature and cause from a different kind of streak, dubbed … Continue reading
Posted in Reports
Tagged CTX, LPSC 2012, Mars Reconnaissance Orbiter, slope streaks, Viking Orbiter
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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
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