Charley Kohlhase: Engineer, Artist, Cassini Mission Designer

Charley Kohlhase has gone eleven for eleven in a JPL career stretching over four decades. That's eleven successful missions, including Voyager 1 and 2. With Cassini-Huygens nearly at Saturn, we enjoy a conversation with this engineer and artist who led the mission's design. Emily Lakdawalla answers a listener's missive about massive planets, and Bruce Betts howls at comets and offers a new trivia contest on What's Up!