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Contact: Jason Maderer
Georgia Institute of Technology

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Caption: Dark flow-like features called Recurring Slope Lineae emanating from bedrock exposures at Palikir crater on Mars during southern summer. These flows are observed to form and grow during warm seasons when surface temperature is hot enough for salty ice to melt, and fade or completely disappear in cold season. Arrows point to bright, smooth fans left behind by flows.

Credit: NASA/JPL

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Related news release: Flowing water on Mars appears likely but hard to prove

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