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
How big is the space economy, and how big might it grow? Space policy expert Dr. Bhavya Lal brings the numbers down to Earth in a great conversation with Casey Dreier.
The leader of the Mastcam-Z team talks about how the best cameras ever on the surface of Mars will help us explore a region that could once have supported life.
China has big plans for a space station, exploration of the Moon and Mars, and possibly a mission that will follow Voyager beyond the edge of the solar system.
Sail on! Leaders of the LightSail 2 mission join 50,000 supporters in celebration of a year in space.
Are we learning how to keep men and women alive on a 3-year round trip to Mars?
The safe arrival of SpaceX’s Crew Dragon at the International Space Station is a huge success for NASA and policymakers who gambled years ago on the value of commercial partnerships for the agency.
After a special message we present highlights of the successful arrival at the International Space Station of the Crew Dragon spacecraft, followed by a visit to chilly Mars with planetary scientist Edgard Rivera-Valentin.
Astrophysicist and former astronaut John “Hubble Repairman” Grunsfeld looks back over three decades of beautiful science and inspiration delivered by the Hubble Space Telescope.
Former astronaut Garrett Reisman helped lead development of the SpaceX Crew Dragon spacecraft that is about to carry astronauts to the International Space Station.
JPL scientist Kevin Hand is endlessly fascinated by the possibility of life in the hidden oceans of the outer solar system’s moons, and now he has written a great book about the quest to discover it.
American astronauts are about to fly from Florida to the International Space Station for the first time in nine years, thanks to the commercial space development initiative advocated for years by Lori Garver.
Philosopher James Schwartz shares his thoughts about the ethics of space exploration, commercialization, and settlement.
The search for life on Mars is at a critical stage. What will come next if we find it?
Celebrating the 200th anniversary of the Royal Astronomical Society and the life of the late astronomer Margaret Burbidge.
The U.S. space agency’s leader describes how NASA is responding to the pandemic crisis as it works to keep projects and missions on track.
One of Earth’s lowliest creatures has inspired and guided a team of scientists toward an improved model for the distribution of galaxies and dark matter across the cosmos.
Join The Planetary Society’s policy team, including Bill Nye, for highlights of a members-only live briefing that shared our analysis of how the coronavirus pandemic may affect space exploration.
Our look ahead at the near-future of solar system exploration continues with Mars, the giant outer worlds, and the smaller bodies that can be found throughout the neighborhood.
Six scientists give us a preview of where planetary science may be taken in the next 10 years by a new NASA decadal survey.
Civil engineer Peter Carrato believes we know how to use what’s available on Mars to build the human structures that will be needed by the first explorers.