Tag Archives: dark slope streaks

HiRISE: Slope streaking

We have been monitoring the slope streaks on this hill for several years. There are definitive changes between this September 2018 image and a previous one in December 2016. Earlier streaks have since faded and new, darker streaks are visible. … Continue reading

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HiRISE: Rising above it in Amazonis Planitia

This image shows a bright, rectangular-looking landform surrounded by a dark floor. How did this feature get here if it looks so different than its surroundings? The feature resembles a plateau. Dark streaks mark steep slopes on its sides while … Continue reading

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THEMIS: Dark streaks on the rim of Orcus Patera

THEMIS Image of the Day, August 15, 2018. Today’s VIS image is located on the western margin of Orcus Patera. Dark slope streaks are present on most ridges in the image. Formation of these features is linked to a change … Continue reading

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THEMIS: Crosscross tectonics in Lycus Sulci

THEMIS Image of the Day, August 14, 2018. Lycus Sulci is a very complex region surrounding the northern and western flanks of Olympus Mons. This VIS image shows some of the tectonic features found in Lycus Sulci as well as … Continue reading

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THEMIS: Terra Sabaea dark slope streaks

THEMIS Image of the Day, August 9, 2018. This VIS image is located in Terra Sabaea. The ridge near the right side of the image contains dark slope streaks. These features are thought to form by downslope movement of material … Continue reading

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THEMIS: Dark slope streaks in Terra Sabaea

THEMIS Image of the Day, August 7, 2018. This VIS image is located in an unnamed crater in Terra Sabaea. The entire inner rim of the crater near the center of the image contains dark slope streaks. These features are … Continue reading

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HiRISE: Dark side of dust avalanches

The dark side of dust avalanches. Changes on the Martian surface are detected by imaging the same area more than once. Here, we see several new dust avalanches on the slopes of ridges within the Olympus Mons Aureole. These changes … Continue reading

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THEMIS: The many textures of Gordii Dorsum

THEMIS Image of the Day, July 24, 2018. This VIS image is located at the northern end of Gordii Dorsum, where the surface slopes down into southern Amazonis Planitia. Within this image are several different surfaces and textures. At the … Continue reading

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THEMIS: Dark streaks on slopes — wet or dry?

THEMIS Image of the Day, June 22, 2018. Located on the rim of Chia Crater, this smaller crater contains a multitude of dark slope streaks. These features are assumed to represent down slope movements of material, either a process that … Continue reading

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THEMIS: Dust avalanches in Lycus Sulci

THEMIS Image of the Day, June 14, 2018. Lycus Sulci is a very complex region surrounding the northern and western flanks of Olympus Mons. This VIS image shows some of the tectonic ridges found in Lycus Sulci as well as … Continue reading

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