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Test For Damp Ground at Mars' Seasonal Streaks Finds None


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Mars recurring slope lineae

Blue dots on this map indicate sites of recurring slope lineae (RSL) in part of the Valles Marineris canyon network on Mars. RSL are seasonal dark streaks that may be indicators of liquid water. The area mapped here has the highest density of known RSL on Mars.

Credit: NASA/JPL-Caltech/Univ. of Arizona

Seasonal dark streaks on Mars that have become one of the hottest topics in interplanetary research don't hold much water, according to the latest findings from a NASA spacecraft orbiting Mars.

From Jet Propulsion Laboratory/NASA
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