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Late Afternoon in Juventae Chasma - Mars Express

The sun is beginning to set over Juventae Chasma, a large canyon system located a little northeast of the Valles Marineris system. Bluffs inside this canyon record the region's history. At center left, a bluff contains regular sedimentary layers, likely indicating long-term climatic changes associated with variations in the Martian orbit.

 

A thick layer of sediment forms a flat floor on the canyon. A series of deep scours resembling a wake have formed just downstream of a small ridge, suggesting that this canyon was once scoured by extensive floods.

 

This image was acquired by the Mars Express HRSC during the spacecraft's 12,508th orbit around Mars, November 4, 2013.

 

Image Credit: ESA/DLR/FU Berlin/J. Cowart, CC BY-SA 3.0 IGO

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Uploaded on January 22, 2016