New research finds that despite large rivers and seas of liquid methane, Saturn’s moon Titan seems mostly devoid of river deltas, raising new questions about the surface dynamics on this alien world.

Mars Express captures images of Acheron Fossae, revealing the Red Planet’s split terrain—ancient cratered highlands and ...

NASA's Curiosity rover landed on Mars on Aug. 5, 2012, and has travelled more than 34 kilometres on the Martian surface. The discovery of carbonate suggests that the atmosphere contained enough carbon ...