(2)NASA announced today that bodies of water were once flowing on the Martian surface. Click here(1) to see Kees Veenenbos' renderings (left) of what Mars may have looked like as a planet with vast oceans.
1. http://www.space.com/scienceastronomy/solarsystem/ancient_mars_020104.html
2. http://www.space.com/scienceastronomy/solarsystem/ancient_mars_020104.html