Tag Archives: wind

THEMIS: Crater dunes

Posted on May 21, 2015 by rburnham

THEMIS Image of the Day, May 21, 2015. Today’s VIS image shows dunes on the floor of an unnamed crater in Noachis Terra. More THEMIS Images of the Day by geological topic.

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HiRISE: Crisscrossing sand ridges

Posted on May 15, 2015 by rburnham

Fine sub-parallel ridge sets crossing nearly perpendicular to the other. Beautiful Mars series.

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THEMIS: Dust devil tracks

Posted on May 8, 2015 by rburnham

THEMIS Image of the Day, May 8, 2015. This VIS image shows dust devil tracks on the surface of Sisyphi Planum. More THEMIS Images of the Day by geological topic.

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THEMIS: Proctor Crater dunes

Posted on April 28, 2015 by rburnham

THEMIS Image of the Day, April 28, 2015. Today’s VIS image shows part of the dune field on the floor of Proctor Crater. More THEMIS Images of the Day by geological topic.

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HiRISE: Reap the whirlwind

Posted on April 24, 2015 by rburnham

Reap the whirlwind. This image catches a chance dust devil crossing the terrain. Is the dark trail merely scoured land, or the shadow of the dust devil itself? Beautiful Mars series.

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THEMIS: Dust devil tracks

Posted on April 8, 2015 by rburnham

THEMIS Image of the Day, April 7, 2015. The faint dark lines in this VIS image are caused by dust devils. As the dust devil travels along the surface it scours away the loose surface dust, revealing the darker surface … Continue reading →

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Dust devil & the details: spinning up a storm

Posted on December 19, 2014 by rburnham

Spinning up a dust devil in the thin air of Mars requires a stronger updraft than is needed to create a similar vortex on Earth, according to research at The University of Alabama in Huntsville (UAH)… “To start a dust … Continue reading →

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Opportunity: Heading uphill

Posted on November 12, 2014 by rburnham

Sol 3839, November 11, 2014. The Navcam looks uphill on Cape Tribulation, across sand ripples strewn by the easterly winds coming out of Endeavour Crater, out of view to the left. Opportunity raw images, its latest mission status, a location … Continue reading →

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HiRISE: Medusae Sulci

Posted on November 12, 2014 by rburnham

Medusae Sulci. Beautiful Mars series.

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THEMIS: Yardangs

Posted on October 15, 2014 by rburnham

THEMIS Image of the Day, October 13, 2014. This region near Memnonia Sulci has been eroded by the wind to form linear ridges called yardangs. The two prominent directions of wind are recorded by the two directions of the ridges. More … Continue reading →

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