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
Paul Davies, Author of
The Meaning of LIFE
John Callas reports on Spirit and Opportunity, Bill Nye debates the future of humans on the Moon, and Bruce Betts looks to the Perseid meteor shower in his What's Up review of the night sky.
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.
Looking for ET's Flashlight: Optical SETI
Where to Look for Life on Mars
Astropulse: A New Way for ET to Phone Home
A New Generation Looking for ET
Going South to Look for ET
Spaceward Bound: Chris McKay Leads Scientists and Teachers in the Mojave Desert
John Rummel: Protecting the Planets from Earth Invaders
Bob Pappalardo and the Mysteries of Europa
Planetary scientist Chris McKay talks about where and how we should look for life in the universe, including Europa and Mars.
Paul Horowitz talks about his new attempt to detect pulses of laser light from distant civilizations with the Optical SETI Dedicated Observatory.
A Tribute to Philip Morrison
Director James Cameron Searches for Aliens
IBM Enters SETI@Home's Game
SETI@Home Chief Scientist Dan Werthimer Says Sorry, Wrong Number
SETI@Home Turns Five!
We visit Harvard biologist Andrew Knoll for a conversation about finding life on the red planet. Emily Lakdawalla is seeing red on another of Earth's neighbors, and Bruce Betts spins a tale of Death Stars, cockroaches and trivia contests on What's Up!