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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Volcanic Venus? New insights from vintage data

Robbie Herrick and Scott Hensley, the minds behind a new paper on recent potential volcanic activity on Venus, join Planetary Radio to discuss their discovery and what it means for the future of Venusian exploration.

Getting psyched for Psyche

Lindy Elkins-Tanton, the principal investigator for NASA’s Psyche mission to explore a metallic asteroid, joins Planetary Radio to share the mission’s status and look forward to the wonders that await when the spacecraft reaches its target.

Universal Harmonies: Sonifying images for science and accessibility

Kim Arcand from NASA’s Chandra X-ray Observatory joins Planetary Radio to share her team’s new album Universal Harmonies.

Space Policy Edition: The Tricky Ethics of Space Settlement

Dr. Erika Nesvold, astrophysicist and author of the new book Off-Earth: Ethical Questions and Quandaries for Living in Outer Space explores the ethical challenges facing our species as it dips its toe into living beyond our home planet.

The Canadian Lunar Rover with Peter Visscher

Director of Canadensys West Peter Visscher fills us in on the upcoming Canadian lunar rover. Visscher has been working on the rover for years.

Martian rock collecting: From meteorites to Mars Sample Return

Meenakshi Wadhwa, principal scientist for Mars Sample Return at NASA JPL, updates us on the missions that will bring bits of the red planet back to Earth.

More on Mars’ Watery History

Mars expert Tanya Harrison shares the details on some of the newest discoveries about Mars’ history, including potential megatsunamis and the discovery of opals in Gale Crater.

Space Policy Edition: The White House's Matt Daniels on the U.S.'s New Cislunar Strategy

Dr. Matt Daniels of the White House's Office of Science and Technology Policy joins the show to discuss the White House’s new cislunar space strategy, its ambitions, and implications for the future of lunar exploration and development.

JWST confirms its first exoplanet

We celebrate the James Webb Space Telescope's first confirmed exoplanet discovery this week on Planetary Radio. Jacob Lustig-Yaeger, one of the leads on the team that made the detection, joins us to discuss the details.

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.

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.

Ann Druyan wishes you a happy Sagan Day

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

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.

DART Impact and Judy Schmidt Interview

Listen as the Double Asteroid Redirection Test spacecraft closes in on asteroid Dimorphos, followed by a triumphant conversation with DART Coordination Lead Nancy Chabot, and a visit with space image processor Judy Schmidt.

Pieces of Mars: How We’ll Get Them to Earth

Getting precious Mars rocks into Earthbound labs is an unprecedented challenge. We'll learn how a lander, a rocket, a big solar-powered transfer vehicle and two helicopters will take on this task.

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