Oh man. NASA still rocks. And the way they make so many photos from space exploration available for free is wonderful. I love to check out Astronomy Picture of the Day because every day has different photos: some pictures taken of space, some from space ships, and many from our own Earth.
Now Chris Hadfield has posted a link to NASA's page on photos from Mars orbiters that strongly suggest the presence of water, not only long ago but now.
It's not the spring runoff in seasonal streams for creekboating, but it looks beautiful.