Tag Archives: sand ripples

HiRISE: Dark and possibly stationary ripples

Dark and possibly stationary ripples in anomalous terrain.  These strange ripples are in some anomalous terrain on the Olympus Mons aureole. These dark ripples have not been imaged in about 8 years, so another shot should show movement…if there IS … Continue reading

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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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