President Barack Obama spoke to 200 leaders of space development and exploration at the Kennedy Space Center last week. Bill Nye the Science Guy gives his impressions of the conference. Emily Lakdawalla reviews last week's highlights of the Planetary Society Blog. Bruce Betts and Mat Kaplan have chosen the best listener-submitted candidates for a Saturn ring mnemonic. They also have a Planetary Radio t-shirt to give away in the new space trivia contest.