New gravity data from recent Cassini flybys of the giant planet suggest that Dione's crust floats on an ocean 62 miles below the surface, and may harbor microbial life.
Saturn's exotic moon Titan, with its thick atmosphere and large, methane lakes, continues to beguile planetary scientists. Now, using data collected by an altimeter aboard NASA's Cassini spacecraft, scientists have found liquid methane flowing through deep gorges on the moon's surface.
Astronomers have identified four new exoplanets circling stars more massive than the sun. The giants range in size from 2.4 to 5.5 times the mass of Jupiter, with orbital periods ranging from two to four years.
NASA's Cassini spacecraft has detected a massive, never-before-seen icy cloud at the south pole of Saturn's huge moon Titan.
New images and animated movies from NASA
