Weird Mars Streaks Could be Liquid Water Stains

Dark seasonal streaks on slopes near the Martian equator may be a sign of flowing salt water on Mars, liquid runoff that melts and evaporates during the planet's warmer months.

Published On 12/10/2013
4:45 PM EST
Map of the confirmed locations of dark streaks, or recurring slope lineae, on Mars. | Nature Geoscience, Alfred McEwen et al