Huge lakes on Titan, Saturn's largest moon -- salt water geysers on Enceladus -- these are only two of the amazing discoveries of NASA's Cassini Mission, as told by one of its top scientists in her own words. Dr. Carolyn Porco eloquently takes us on a thrilling tour of Saturn and its moons, using Cassini's stunning original digital photographs and the astonishing images of its probe, Huygens, that actually landed across space on the surface of Titan. Fly over Titan's Lake Ontario and glide through the mists of Enceladus ... and wonder whether life hasn't already emerged in their watery depths.