What's New at Saturn? Checking In With Cassini's Linda Spilker

The Cassini spacecraft continues its amazing journey around Saturn, uncovering answers and new mysteries alike. We make one of our regular visits to Linda Spilker, the mission's Deputy Project Scientist, for a quick overview of recent discoveries and a look toward the future. Emily Lakdawalla's fascinating Q&A helps us understand all that ice at the Martian poles. Bruce Betts and Mat Kaplan salute Wally Schirra in What's Up and announce a new space trivia contest.