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.

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Juno Journeys to Jupiter’s Moons

Dive into the latest discoveries about Jupiter’s moons, Ganymede, Europa, and Io, with Scott Bolton, the principal investigator for NASA’s Juno mission.

Martian Mic Drop

Jason Achilles, a musician who partnered with NASA’s JPL to help put one of the first microphones on Mars, shares his journey and the joy of listening to the sounds of the red planet.

Celebrating NASA’s Artemis I mission to the Moon

Jeremy Graeber, the assistant launch director at Kennedy Space Center in Florida, joins Planetary Radio to recount his experience on the night of Artemis I’s historic launch.

Space Policy Edition: JPL Director wants "every brain" to have the chance to work in space exploration

Jet Propulsion Laboratory Director Laurie Leshin wants to give every brain in the country the opportunity to work in space exploration.

Planetary Radio stories with Mat Kaplan

New host Sarah Al-Ahmed bids a fond farewell to Mat Kaplan, Planetary Radio’s former host, in a special interview as Mat shares stories from his two decades as creator and producer of the show.

Planetary Society All-Stars Review the Year in Space

For his last episode as host, Mat Kaplan welcomes many of his Planetary Society colleagues for a review of a spectacular year of space exploration.

Artemis 1 Orion capsule comes home, and the best of Planetary Radio

Host Mat Kaplan greets the Orion capsule that has just returned from the Moon, and then presents some of the best of Planetary Radio’s 20 years.

One Last Blast: Author of ‘The Martian’ Andy Weir with JPL Chief Engineer Rob Manning

Outgoing Planetary Radio host Mat Kaplan realizes a dream by getting Rob Manning and Andy Weir together for one of the most entertaining conversations in our show’s two decades.

Scientist and Hubble Repairman John Grunsfeld

Astrophysicist, former astronaut and NASA associate administrator John Grunsfeld on human exploration of space and the science we will do there.

Space Policy Edition: NASA's Economic Impact with Alex MacDonald and Joshua Drucker

What is NASA’s return on investment? NASA chief economist Alex MacDonald and University of Illinois Chicago professor Joshua Drucker provide revealing answers from a new economic impact report.

20th Anniversary of Planetary Radio

Join the Planetary Society’s CEO, its co-founder Louis Friedman, and others as we mark Planetary Radio’s entry into its third decade.

Giving the University of Arizona Mirror Lab a spin

Join us for a tour of the University of Arizona’s Mirror Lab where they use a giant, spinning oven filled with molten glass to create the primary mirrors for the Giant Magellan Telescope.

Voyager Mission Project Scientist Linda Spilker

Cassini Mission Project Scientist Linda Spilker has now taken on the same job for the Voyager Interstellar Mission.

Space Policy Edition: What the Congressional Midterms Mean for Space Science

Bethany Johns of the American Astronomical Society talks with Planetary Society Chief Advocate Casey Dreier about how changes in Washington after the midterm elections may affect support for science.

Ann Druyan wishes you a happy Sagan Day

Celebrate Carl Sagan’s birthday with his longtime collaborator and life partner Ann Druyan.

Space Policy Edition Bonus: Q&A with Casey Dreier and Bill Nye

A special Space Policy Edition featuring a recent policy and advocacy webcast that gave Planetary Society members the opportunity to query Chief Advocate Casey Dreier and Society CEO Bill Nye.

DART smacked an asteroid! So what’s next in planetary defense?

The Double Asteroid Redirection Test was a brilliant success. The leaders of NASA’s Planetary Defense Coordination Office tell us what’s next in the quest to protect Earth.

Meet the new Planetary Radio host! (and enjoy a beer with a cosmologist)

20 years after its creation, Mat Kaplan is ready to introduce the great new host of Planetary Radio. We also join an assembly of astrophysicists as they toast each other and the cosmos.

Eyes on the Sky: Spacewatch and the Catalina Sky Survey

Meet leaders of two of the most successful Earth-based searches for asteroids, including many that could threaten Earth.

Innovate! NASA’s leading-edge fellows share their amazing projects

Join us at the 2022 NASA Innovative Advanced Concepts (NIAC) Symposium for a taste of projects that just might change the world.

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