Explore Worlds
Find Life
Defend Earth
Planetary Radio Episodes
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.
Lunar Reconnaissance Orbiter Project Scientist Richard Vondrak
Phil Christensen Wants Your Help Imaging Mars
Earth Observation at the World Resources Simulation Center Design Event
Alan Stern's Biggest Planetary Science Mysteries
Chris McKay on the Phoenix Mission's Big Surprise
New Life for Hubble Space Telescope, New Leader for NASA
Oldest Bang Since the Big Bang!
Kepler Begins Search for Other Earths
Bruce Banerdt provides a status report on Spirit and Opportunity. Bill Nye has something old and something new to talk about, and Bruce Betts returns from the Planetary Defense Conference in Spain with news of Near Earth Objects and other things in the night sky.
Amateur Astronomers Avoiding Armageddon: New Shoemaker NEO Grant Awardees
Space Stinks! Astronaut and Author Tom Jones
A Cassini Saturn Update from Linda Spilker
Have Spacesuit, Will Travel
Are There Puddles on Mars?
Exoplanet Finder Debra Fischer
Going to Bed for NASA
Bringing Astronomy to the People With Mike Simmons
Space Debris Can Ruin Your Day
Signs of Life? Discovery of Martian Methane Plumes
A Conversation with Elon Musk of SpaceX