Tag Archives: dust avalanches

THEMIS: Dark slope streaks in rugged terrain

Posted on May 31, 2018 by rburnham

THEMIS Image of the Day, May 31, 2018. This VIS image shows part of the ‘rim’ of Orcus Patera. How Orcus Patera formed is a mystery. Along the east facing ridge walls in this image multiple regions of dark slope … Continue reading →

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HiRISE: A nice gathering of slope streaks

Posted on February 13, 2018 by rburnham

A nice gathering of slope streaks. Beautiful Mars series.

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HiRISE: Splitting slope streaks

Posted on February 8, 2018 by rburnham

Streaks form on slopes when dust cascades downhill. The dark streak is an area of less dust compared to the brighter and reddish surroundings. What triggers these avalanches is not known, but might be related to sudden warming of the … Continue reading →

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THEMIS: Dust avalanches in Terra Sabaea

Posted on July 21, 2017 by rburnham

THEMIS Image of the Day, July 21, 2017. This VIS image shows several dark slope streaks on the inner rim of an unnamed crater in Terra Sabaea. These features are thought to be formed by dust avalanches — downslope movement … Continue reading →

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HiRISE: Swept away

Posted on July 7, 2017 by rburnham

Swept away. Beautiful Mars series.

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HiRISE: Dark slope streaks, of many ages

Posted on March 31, 2017 by rburnham

Everything is a canvas. Beautiful Mars series.

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HiRISE: Dark slope streaks on a mound

Posted on November 4, 2016 by rburnham

O small martian mound! Beautiful Mars series.

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THEMIS: Dark slope streaks in Arabia Terra crater

Posted on August 22, 2016 by rburnham

THEMIS Image of the Day, August 22, 2016. Today’s VIS image shows part of an unnamed crater in Arabia Terra. The inner rim of the crater has numerous dark streaks. It is possible that these features form due to downslope … Continue reading →

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THEMIS: Dark slope streaks

Posted on July 7, 2016 by rburnham

THEMIS Image of the Day, July 7, 2016. Today’s VIS image shows the inner rim of an unnamed crater on the western margin of Daedalia Planum. Numerous dark streaks are visible on the faces of the inner rim. A possible … Continue reading →

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THEMIS: Dark slope streaks

Posted on May 19, 2016 by rburnham

THEMIS Image of the Day, May 19, 2016. Today’s image shows an unnamed crater in Terra Sabaea. There are numerous dark streaks visible on the inner rim of the crater. These streaks are thought to form due to down slope … Continue reading →

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