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.
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
Exoplanet Finder Debra Fischer
Jim Bell and Bill Nye talk Spirit and Opportunity in celebration of 5 years on Mars. Emily Lakdawalla's Q&A looks forward to a Mars flyby by the Dawn spacecraft.
Looking for ET's Flashlight: Optical SETI
Planetary Society Exec. Director Lou Friedman on the new plan for human exploration of space.
Longtime partner Ann Druyan is proud of NASA's new Carl Sagan Fellowships. Bill Nye has a tribute for his old professor.
Phoenix on Ice: One Week in the Martian Arctic Circle
Seven Minutes of Terror and Triumph: Phoenix Lands on Mars
Steve Squyres gives us a status report on Spirit and Opportunity, and Bill Nye comments on the rings that appear to surround one of Saturn's small moons. Last week Emily Lakdawalla told us why objects in space are round, but this time her Q&A explains why they're not.
Saving the Planet: The Apophis Mission Design Competition
Examining the Vision for Space Exploration: A Workshop Preview
A Very Good Year: Looking Back at 2007
A New Generation Looking for ET
Stardust@Home Update from Andrew Westphal
To Phobos and Back
Celebrating Sputnik With Louis Friedman in Moscow
The Pioneer Anomaly: Changing the Laws of Physics?
Phoenix is on its way to Mars
Phoenix Mars Lander Principal Investigator Peter Smith