Saturn; Cassini’s Excellent Adventure Saturn • About nine times Earth’s diameter • 95 times as massive as Earth • 1.4 billion kilometers (900 million miles) from Sun • Orbits Sun in 29.5 years • Largest moon is Titan (5100 km), 7 others 300-1500 km, 52 smaller moons Saturn as Seen from Earth First Visit to Saturn: Pioneer 11, 1979 Pioneer 11 View of Saturn’s Rings Early Voyager Photograph Not as Exciting as Jupiter Detail of Saturn’s Rings Saturn Seen From Beyond Mimas Enceladus Dione Titan Crescent Titan Iapetus Cassini This is Rocket Science • • • • • • • • Launch: October 15, 1997 Venus Flyby April 26, 1998 Venus Flyby June 24, 1999 Earth Flyby August 18, 1999 Jupiter Flyby December 30, 2000 Saturn Orbit Insertion July 1, 2004 Huygens Probe Separation Dec. 24, 2004 Titan Landing January 14, 2005 Saturn From Cassini Crescent Saturn Behind Saturn Behind Saturn Rings and Shadow Ripply Rings Making Waves Saturn’s South Pole Storms in Saturn’s Far North The North Polar Hexagon “Saucer” Moons Hyperion Phoebe Iapetus By Saturn-Shine Iapetus Ridge Enceladus Enceladus Enceladus up close and Personal Dione and Rhea Saturn, Titan, Enceladus Dione and Saturn’s Rings Titan’s Haze Surface of Titan Aerial View of Titan Aerial View of Titan Surface of Titan Lakes on Titan Titan’s Largest Sea Sun Glint off Liquid Boris Smeds: The Hero of Huygens