Tag Archives: sand ripples

HiRISE: The moving sands of Lobo Vallis

Bright ripples line the topography in this region, formed within a past climate. Dark dunes and sand streaks (composed of basaltic sand) have moved and filled lower areas, pushed by more recent winds from the top towards the bottom of … Continue reading

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Curiosity update: Kicking up some sand

Sol 1748-52, July 7, 2017, update by MSL scientist Michael Battalio: Curiosity has intentionally scuffed a nearby sand ripple, which has gifted the team with an exceptional view of the interior of these small sand deposits. The majority of the … Continue reading

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Curiosity: Rolling over a ripple

Sol 1748, July 7, 2017.  Curiosity rolled one wheel across a sand ripple, as scientists sought to see what its interior structure might be (above). At right, the views from the front and rear Hazcams. (Click any image to enlarge … Continue reading

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Curiosity: Among megaripples

Sol 1686, May 4, 2017. Curiosity’s drive toward Vera Rubin Ridge is encountering locations where sand has collected into large ripples. Here we see that the rover rolled a foot or two onto a ripple then rolled back, perhaps as … Continue reading

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Curiosity: Edge of Ogunquit Beach

Sol 1646, March 24, 2017. Curiosity drove about 30 meters (100 feet) to the east-northeast. This placed the rover close to the edge of a large sand patch where it can investigate the dune sand and dune ripples at the … Continue reading

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Mars winds carve mountains, move & raise dust

On Mars, wind rules. Wind has been shaping the Red Planet’s landscapes for billions of years and continues to do so today. Studies using both a NASA orbiter and a rover reveal its effects on scales grand to tiny on … Continue reading

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HiRISE: Star & barchan dunes, Tyrrhena Terra

We monitor the dunes so that you don’t have to. Beautiful Mars series.

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HiRISE: Dark dunes over light-toned mega-ripples

Dark dunes over light-toned mega-ripples. Beautiful Mars series.

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Large aeolian ripples on Mars

Planetary Geomorphology Image of the Month, July 30, 2016: Ryan C. Ewing (Texas A&M University).  Ripples cover the surfaces of sand dunes on Earth and Mars. On Earth, ripples formed in typical aeolian sand (e.g., 0.1 and 0.3 mm) range … Continue reading

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Curiosity update: ‘More sand traps’

Sol 983, May 11, 2015, update from USGS scientist Ken Herkenhoff: The Sol 981 drive got the rover around the troublesome ripples and to the desired location, which gave us a good view of the terrain ahead.  Unfortunately, the images … Continue reading

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