Tag Archives: sand dunes

Curiosity’s dune studies yield a surprise

Some of the wind-sculpted sand ripples on Mars are a type not seen on Earth, and their relationship to the thin Martian atmosphere today provides new clues about the atmosphere’s history. The determination that these mid-size ripples are a distinct … Continue reading

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THEMIS: Vernal Crater floor – false color

THEMIS Image of the Day, June 28, 2016. Today’s false color image shows part of the floor of Vernal Crater. Dark blue in this band configuration often indicates sand or basaltic materials. The THEMIS VIS camera contains 5 filters. The data … Continue reading

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THEMIS: Wegener Crater dunes – false color

THEMIS Image of the Day, June 23, 2016. Today’s false color image shows some of the dunes on the floor of Wegener Crater. Dunes often appear as a dark blue in false color THEMIS images. The THEMIS VIS camera contains … Continue reading

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HiRISE: Basaltic sand & plateaus in impact crater

Basaltic sand and plateaus within an impact crater. Beautiful Mars series.

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HiRISE: At the edge of a dune sea

At the edge of a dune sea. Beautiful Mars series.

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HiRISE: The plains are not plain

This image covers some of the plains south of Capri Chasma in eastern Valles Marineris. Where the aeolian (wind-blown) sedimentary cover has been stripped away, we see diverse colors indicative of of a variety of altered minerals formed in Mars’ … Continue reading

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THEMIS: More Olympia Undae

THEMIS Image of the Day, June 2, 2016. This VIS image shows a small portion of Olympia Undae, the largest of the dune fields surrounding the north polar cap. This image was collected during summer and no frost remains on … Continue reading

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THEMIS: Olympia Undae

THEMIS Image of the Day, June 1, 2016. This VIS image shows a small portion of Olympia Undae, the largest of the many dune fields surrounding the north polar cap. This image was collected during summer, and the dunes are … Continue reading

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Opportunity: South floor dunes, Endeavour Crater

Sol 4380, May 20, 2016. The rover’s Pancam took a pair of multi-filtered frames looking southeast from the head of Marathon Valley. The target was the fields of dunes on the crater floor. Reconstructed into false-color by Holger Isenberg, the … Continue reading

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THEMIS: Olympia Undae

THEMIS Image of the Day, May 23, 2016. This VIS image shows a small portion of Olympia Undae. Olympia Undae is the largest dune field at the margin of the north polar cap. This image was collected during northern hemisphere … Continue reading

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