Host Mat Kaplan and The Planetary Society's Executive Director, Bill Nye the Science Guy, welcomed Caltech astronomer Mike “Pluto-Killer” Brown to the Crawford Family Forum stage. Dr. Brown is the discoverer of such faraway worlds as Eris and Sedna as well as the author of "How I Killed Pluto--And Why It Had It Coming." Other special guests will included popular space blogger Emily Lakdawalla via video and Bruce Betts, Director of Projects for The Planetary Society, who will tell us about the current night sky. The icing on the planet was barbershop quartet Hi-Fidelity. Listen to them harmonize about Star Trek and more! To listen to this event, please click HERE. Photo: Pluto and Charon lie close to each other in this view from the Hubble Space Telescope Faint Object Camera. Created: 1990. Credit: NASA and ESA