Founder and former leader, Astronomers Without Borders
The 100 Hours of Astronomy worldwide celebration begins April 2nd. Co-chair Mike Simmons tells us what to expect and how to get involved. Mike also leads Astronomers Without Borders. One successful launch, one unsuccessful, and science education, brought together by Bill Nye. Emily's Q&A visits a moon of Saturn. Bruce Betts tells Mat Kaplan about the new Catalog of Exoplanets and serves up a new What's Up space trivia contest.