Martian salt streaks 'painted by liquid water'
 

Scientists think they can now tie dark streaks seen on the surface of Mars to periodic flows of liquid water.

Data from a Nasa satellite shows the features, which appear on slopes, to be associated with salt deposits.

http://www.bbc.co.uk/news/science-environment-34379284

Re: Martian salt streaks 'painted by liquid water'
 

Yes l saw it earlier on the news and its certainly pretty fascinating.