The Director of the Center for SETI Research is thrilled to have the Allen Telescope Array back in the hunt for extraterrestrial intelligence. She also tells us about SETILive, the new project that has more than 50,000 citizen scientists scanning for ET. Bill Nye is back from the national science teachers convention, while Emily Lakdawalla tells us what a lot of interplanetary spacecraft are up to in April. What do Jeff Bezos, cheese trays and middle school humor have to do with our solar system? Find out during What's Up, and enter the new space trivia contest.