While it's not exactly new news to a lot of people, more evidence of water flowing on Mars has come forward. This time images from NASA's Mars Reconnaissance Orbiter seem to show rocks that have been recently weathered by flowing water.

As the evidence mounts I wonder how long it will be before NASA starts working the very real possibility of water on Mars into their future plans. I also can't help but wonder long NASA has known about the water, and why most of the exciting Mars news most recently seems to come from scientists outside of NASA studying NASA data.