Rings Around Saturn                       1 2 3 4 5 6 7 8 9 Cassini Spacecraft Marks 3 Years at Ringed World Saturn's Eye Cassini stares deep into the swirling hurricane-like vortex at Saturn's south pole, where the vertical structure of the clouds is highlighted by shadows. Such a storm, with a well-developed eye ringed by towering clouds, is a phenomenon never before seen on another planet. Winds blow at 550 kilometers (350 miles) per hour. + Movie and caption     Jet Propulsion Laboratory    California Institute of Technology   + Cassini to Saturn