Do we? Sept. 28, 2015 - We found water! > These downhill flows, known as recurring slope lineae (RSL), often have been described as possibly related to liquid

Do we? Sept. 28, 2015 - We found water! > These downhill flows, known as recurring slope lineae (RSL), often have been described as possibly related to liquid water. The new findings of hydrated salts on the slopes point to what that relationship may be to these dark features. The hydrated salts would lower the freezing point of a liquid brine, just as salt on roads here on Earth causes ice and snow to melt more rapidly. Scientists say it’s likely a shallow subsurface flow, with enough water wicking to the surface to explain the darkening. [1] Aug. 23, 2016 - Maybe not... > "Some type of water-related activity at the uphill end still might be a factor in triggering RSL, but the darkness of the ground is not associated with large amounts of water, either liquid or frozen," Edwards said. "Totally dry mechanisms for explaining RSL should not be ruled out." [2] [1] https://www.nasa.gov/press-release/nasa-confirms-evidence-that-liquid-water-flows-on-today-s-mars https://www.nasa.gov/press-release/nasa-confirms-evidence-th... [2] https://mars.jpl.nasa.gov/news/test-for-damp-ground-at-mars-seasonal-streaks-finds-none https://mars.jpl.nasa.gov/news/test-for-damp-ground-at-mars-...