A Conversation With Jet Propulsion Lab Director Charles Elachi

Charles Elachi has been part of many missions in his thirty years at JPL, but his greatest mission may have began three years ago when he became director. Hear him talk about the famous lab, the future of NASA exploration, and the imminent Cassini encounter with Saturn's moon Titan, in which he is also involved as a researcher. Emily Lakdawalla reveals Saturn's embarrassingly dirty ring, and Bruce Betts tells us What's Up!