Tag Archives: dust devil tracks

HiRISE: Blink and you’ll miss them

Blink and you’ll miss them. The dust devil tracks in this image have faded considerably since an earlier image, something we wanted to measure. If you look to the lower left and center, you can still see some of them. … Continue reading

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THEMIS: High-latitude dune field

THEMIS Image of the Day, February 14, 2019. Today’s VIS image shows a dune field on a crater floor in Terra Cimmeria. Dunes at high latitudes – near the polar caps – are affected by seasonal frost and ice. The … Continue reading

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THEMIS: Dune swirl in Terra Cimmeria

THEMIS Image of the Day, February 6, 2019. Sand dunes cover part of the floor of this unnamed crater in Terra Cimmeria. See more THEMIS Images of the Day by geological subject.

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HiRISE: For your consideration

For your consideration. An alien landscape with dust devil streaks and craters slowing fading away into the mists of time. A twilight zone of geology, if you will. (Features like this are often called “thumbprint terrain”.) HiRISE Picture of the … Continue reading

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THEMIS: Dunes and dust devil tracks in Terra Cimmeria

THEMIS Image of the Day, January 30, 2019. This unnamed crater in Terra Cimmeria has both a sand sheet with dune forms and a multitude of dust devil tracks. The linear and scalloped dark marks are created by dust devils … Continue reading

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THEMIS: Dust devil tracks in Promethei Terra

THEMIS Image of the Day, January 2, 2019. This VIS image shows a region dense with dust devil tracks (and several pedestal craters). Located in Promethei Terra, these tracks run parallel to the nearby southeastern margin of Hellas Planitia. The … Continue reading

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HiRISE: Active dunes in Wirtz Crater

These gorgeous dunes are likely active, with ripples on their upwind slopes and dark streaks on their downwind slopes forming and changing due to wind-driven sand motion. This motion will also keep the dune brink (the edge between the two … Continue reading

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HiRISE: Dust devil in action

Dust devil tracks in the Diacria region. Our eye might deceive us, but that bright spot in the enhanced color image looks suspiciously like a dust devil in action. Hmmm…. Beautiful Mars series. [More at links]

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THEMIS: Small channel in Terra Sirenum

THEMIS Image of the Day, November 13, 2018. A small channel system dissects the rim of this unnamed crater in Terra Sirenum. The plains around the crater rim show faint dark streaks, tracks left by dust devils. See more THEMIS … Continue reading

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ExoMars: Measures radiation risk for Mars astronauts, watches dust storm subside

Astronauts on a mission to Mars would be exposed to at least 60% of the total radiation dose limit recommended for their career during the journey itself to and from the Red Planet, according to data from the ESA-Roscosmos ExoMars … Continue reading

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