Tag Archives: dust devil tracks

HiRISE: Active dunes in Wirtz Crater

Posted on November 29, 2018 by rburnham

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 →

Posted in Reports | Tagged , , , , , , , , , | Comments Off

HiRISE: Dust devil in action

Posted on November 23, 2018 by rburnham

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]

Posted in Reports | Tagged , , , , , , , , , | Comments Off

THEMIS: Small channel in Terra Sirenum

Posted on November 13, 2018 by rburnham

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 →

Posted in Reports | Tagged , , , , , , , , , , | Comments Off

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

Posted on September 19, 2018 by rburnham

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 →

Posted in Reports | Tagged , , , , , , , , , , , | Comments Off

THEMIS: Utopian dust devil tracks

Posted on July 2, 2018 by rburnham

THEMIS Image of the Day, July 2, 2018. Today’s VIS image shows dust devil tracks in Utopia Planitia. The tracks occur where dust devils have scoured the fine materials off the underlying surface. In some cases dust devils can create … Continue reading →

Posted in Reports | Tagged , , , , , , , , | Comments Off

HiRISE: Circular lava structure in Elysium Planitia

Posted on November 28, 2017 by rburnham

A circular structure in lava in southwestern Elysium Planitia. Beautiful Mars series.

Posted in Reports | Tagged , , , , , , , , , , | Comments Off

HiRISE: Well-preserved 4-kilometer impact crater

Posted on November 10, 2017 by rburnham

Well-preserved 4-kilometer impact crater on the floor of Hellas Planitia. Why do we say “well-preserved?” Mainly due to the fact that the rim of the crater is still very visible. Beautiful Mars series.

Posted in Reports | Tagged , , , , , , , , , | Comments Off

HiRISE: Squiggles in Hellas Planitia

Posted on October 24, 2017 by rburnham

At around 2,200 kilometers in diameter, Hellas Planitia is the largest visible impact basin in the Solar System, and hosts the lowest elevations on Mars’ surface as well as a variety of landscapes. This image covers a small central portion … Continue reading →

Posted in Reports | Tagged , , , , , , , , , , | Comments Off

HiRISE: Within a crater in the Southern Highlands

Posted on July 27, 2017 by rburnham

Within a crater in the Southern Highlands. This is a very ancient crater, long filled-in. You can see polygonal patterns in the terrain, mainly due to the contraction of subsurface ice as the seasons change. Beautiful Mars series.

Posted in Reports | Tagged , , , , | Comments Off

HiRISE: Dunes, slopes, and dust devil tracks

Posted on July 25, 2017 by rburnham

Dunes and slopes. Beautiful Mars series.

Posted in Reports | Tagged , , , , , , , , , | Comments Off