Why We Need Missions to Earth

Former University of New Hampshire Professor Berrien Moore shared the 2007 Nobel Peace Prize and now heads Climate Central. He talks about participation in a recent Planetary Society delegation to Washington regarding Earth observation missions, and expands on his article in The Planetary Report. Bill Nye on discovery of water at Mercury. Emily Lakdawalla's Q&A, and What's Up enjoys a burger, fries, and the night skies, and announces a new space trivia contest.