Explore Worlds
Find Life
Defend Earth
Since 2002, Planetary Radio has visited with a scientist, engineer, project manager, advocate, or writer who provides a unique perspective on the quest for knowledge about our Solar System and beyond. The full show archive is available for free.
Search Planetary Radio
Bill Nye Visits the SOFIA Telescope
Special Launch Coverage From the Kennedy Space Center
Talking With Mary Roach, Author of Packing for Mars
PlanRad goes before a live audience to talk rockets with Bill Nye, Jeff Richichi of SpaceX, and JPL pioneer James Burke.
Lunar Smackdown! Special LCROSS Impact Coverage
A Conversation with Elon Musk of SpaceX
Longtime partner Ann Druyan is proud of NASA's new Carl Sagan Fellowships. Bill Nye has a tribute for his old professor.
Cosmos 1: Solar Sail Special Report
Solar Sail Countdown
A Conversation with Sally Ride
A Martian Birthday Party for Ray Bradbury
A Visit With Sir Arthur C. Clarke
Cool Science: Ice on Europa and Mars
Interview with Louis Friedman