http://www.newsweek.com/water-mars-huge-lake-detected-below-red-planets-surface-major-milestone-1041265

Researchers have detected a 12.5 mile-wide body of liquid water below the surface of Mars using a radar zipping around the Red Planet.

Buried a mile beneath Mars’ southern polar ice caps, the team think they’ve found a salty lake that might be able to harbor life, a discovery hailed as a “major milestone” for our understanding of the planet. Their research was published in the journal Science.