Tag Archives: dark slope streaks

THEMIS: Wind, dust, and gravity in Medusae Fossae

THEMIS Image of the Day, April 10, 2018. This VIS image is located in Medusae Fossae. Along the cliffside several dark streaks are visible. It is thought that these streaks mark the location where downslope movement of material has removed … Continue reading

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THEMIS: Spiny ridges of Lycus Sulci

THEMIS Image of the Day, March 29, 2018. Lycus Sulci is a very complex region surrounding the northern and western flanks of Olympus Mons. This VIS image shows several features found in Lycus Sulci including tectonic derived ridges with dark … Continue reading

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HiRISE: Supremely sublime sliding sand sheets

Supremely sublime sliding sand sheets. East Melas Chasma. Beautiful Mars series.

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HiRISE: A nice gathering of slope streaks

A nice gathering of slope streaks. Beautiful Mars series.

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HiRISE: Splitting slope streaks

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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HiRISE: Dark slope streaks in Olympus Mons aureole deposits

Wisps on another world. Beautiful Mars series.

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HiRISE: Dark slope streaks in Labeatis Fossae

Never the twain shall meet. Beautiful Mars series.

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THEMIS: Dust avalanches in Terra Sabaea

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: The specters of Mars

The jagged saw-tooth dichotomy, over a grainy texture, seen in this close-up image, reminds us of a scene from an old silent horror movie. Stark and unnerving, like that time between dusk and darkness, as the campfire burns out…was that … Continue reading

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HiRISE: Swept away

Swept away. Beautiful Mars series.

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