Mars http://kcur.org en Streams Of Water Once Flowed On Mars; NASA Says Photos Prove It http://kcur.org/post/streams-water-once-flowed-mars-nasa-says-photos-prove-it NASA's Curiosity rover has found definitive proof that water once ran across the surface of Mars, the agency announced today. NASA scientists say new photos from the rover show rocks that were smoothed and rounded by water. The rocks are in a large canyon and nearby channels that were cut by flowing water, making up an alluvial fan.<p>"You had water transporting these gravels to the downslope of the fan," NASA researchers say. Thu, 27 Sep 2012 19:11:00 +0000 Bill Chappell 25185 at http://kcur.org Streams Of Water Once Flowed On Mars; NASA Says Photos Prove It