You all probably already know about this, but:
We finally have a firm answer to one of the biggest mysteries of Mars. Not only did the Red Planet have water in the past, but it has it right now, flowing in a briny mix that keeps it from freezing.
Mind you, this is not the kind of water you would want to drink:
[T]his isn’t typical water. Instead, it’s a briny mixture called hydrated salts that move a little more like a fluid than like a liquid. They also only occur seasonally, having not been seen when Mars is in its winter months. The salts allow the water to stay liquid at temperatures down to around -60 degrees Fahrenheit.
Still, interesting! All kinds of news about planets this year, what with Pluto and then Kepler-186f and now Mars.