Tag Archives: Valles Marineris

THEMIS: And the rocks came tumbling down

THEMIS Image of the Day, August 1, 2018. This VIS image is located in central Ganges Chasma. A large landslide deposit fills the top third of the image. The radial grooves on the top of the landslide are a common … Continue reading

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THEMIS: Slide debris and layered deposits in Ophir Chasma

THEMIS Image of the Day, July 13, 2018. Today’s VIS image shows part of Ophir Chasma. Ophir Chasma is part of Valles Marineris, the largest canyon system on Mars. At the top of the image is a portion of a … Continue reading

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THEMIS: Faulting and landslides in Tithonium Chasma

THEMIS Image of the Day, June 28, 2018. This VIS image shows the eastern edge of Tithonium Chasma, one of the large valley systems that comprise Valles Marineris. Large fractures are visible on the upper margin of the chasma. Downward … Continue reading

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THEMIS: Hebes Mensa

THEMIS Image of the Day, June 13, 2018. Located in the center of Hebes Chasma is a large deposit of layered material called Hebes Mensa. Extensive erosion has created gullies in the mensa and distributed fine sand size materials to … Continue reading

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HiRISE: A volcano — of mud or lava?

This image shows a hill with a central crater. Such features have been interpreted as both mud volcanoes (really a sedimentary structure) and as actual volcanoes (the erupting lava kind). They occur on the floor of Valles Marineris below a … Continue reading

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THEMIS: Landslide debris and dunes in Coprates Chasma

THEMIS Image of the Day, June 8, 2018. Today’s VIS image shows part of the wall and floor of Coprates Chasma. Several landslide deposits are visible as well as small regions of sand dunes. More THEMIS Images of the Day … Continue reading

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THEMIS: Landslide into Coprates Catena

THEMIS Image of the Day, June 5, 2018. A landslide deposit is visible in this VIS image of Coprates Catena. Coprates Catena parallels the much larger Coprates Chasma; both are part of Valles Marineris. More THEMIS Images of the Day … Continue reading

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Mars Express: From horizon to horizon

Fifteen years ago, ESA’s Mars Express was launched to investigate the Red Planet. To mark this milestone comes a striking view of Mars from horizon to horizon, showcasing one of the most intriguing parts of the martian surface. On 2 … Continue reading

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HiRISE: Dunes in Nectaris Montes

Sand dunes in Valles Marineris can be impressive in size, with steep slopes that seem to climb and descend. An enhanced-color cutout shows some of these on the slopes of Nectaris Montes within Coprates Chasma. The brighter bedforms are inactive … Continue reading

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HiRISE: Strata always have a story

Strata always have a story. This area is located within the massive Valles Marineris canyon system, and was suggested to monitor for recurring slope lineae on a slope to the south, but we thought the gorgeous bedrock deserved to be … Continue reading

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