Bob Pappalardo and the Mysteries of Europa

Newly-arrived at the Jet Propulsion Lab as a Principal Scientist, Bob Pappalardo is prepared to continue his investigations of Jupiter's icy moon Europa, including the push for a dedicated mission. He joins us at The Planetary Society studio for a conversation, including a description of the current expedition to the spot on Earth that may be most like Europa's surface. Emily Lakdawalla looks at another mysterious moon in Q&A, and Bruce Betts has all the dirt on the the trial separation of Mars and Jupiter and a new space trivia contest in What's Up!