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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Fifty-five hundred worlds and counting: The astonishing diversity of exoplanets

We dive into the stunning variety of exoplanets beyond our Solar System with Jessie Christiansen, the project scientist for the NASA Exoplanet Archive.

Tabletops and telescopes: NASA’s RPG and the hunt for habitable worlds

We explore NASA's first tabletop role-playing game with senior multimedia specialist Christina Mitchell and a new way to find water worlds with Amaury Triaud from the University of Birmingham.

JWST finds a new lead in the search for life on a mysterious exoplanet

Knicole Colón, the deputy project scientist for exoplanet science for JWST, joins Planetary Radio to discuss the detection of methane and carbon dioxide in the atmosphere of K2-18 b.

Looking back on 2023

Members of The Planetary Society staff revisit some of 2023's most exhilarating moments and groundbreaking discoveries in space this week on Planetary Radio.

Deep Sky: A JWST IMAX experience

Nathaniel Kahn, an Oscar-nominated filmmaker and the director of Deep Sky, joins Planetary Radio this week to discuss the film's decade-long creation process and the magic of JWST images on the big screen.

The oldest organic molecules in the known Universe

Justin Spilker joins Planetary Radio to talk about his team’s detection of the oldest organic molecules in the known Universe.

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.

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.

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.

The JWST: An Awesome New Window on the Universe Opens Wide

NASA and its partners have revealed the first stunning images from the new space telescope. We’ll talk about them with Bill Nye and members of the JWST team.

The weather on brown dwarfs, and worlds on the eve of destruction

Johanna Vos watches the weather on brown dwarf worlds while her colleague, Sam Grunblatt, finds giant planets spiraling toward their doom.

Space Policy Edition: JWST and the politics of mega-science (with Robert Smith)

Science historian Robert Smith describes how NASA's new flagship space observatory came to be.

Nobel laureate John Mather: The promise of the James Webb Space Telescope

JWST senior project scientist John Mather has been looking forward to the new space telescope’s first light for more than 30 years. He joins us with a fascinating preview.

We have touched the Sun: The Parker Solar Probe’s triumph

A spacecraft has penetrated the Sun’s corona for the first time, revealing unprecedented data and capturing a mind-blowing video.

Space Policy Edition: What We're Watching in 2022

Planetary Society chief of D.C. operations Brendan Curry returns for a look ahead at what to expect in 2022.

Return to the Moon: Spacesuits and preparing for splashdown in the Pacific

Building the next spacesuit for Moon walkers, and a shipboard update on how the Artemis 1 Orion capsule will be recovered from the Pacific Ocean.

A good year for space: Planetary Society all-stars review 2021

Seven Planetary Society experts and enthusiasts celebrate 2021’s many space science and exploration milestones.

JWST is ready for launch and amazing science

Three astronomers share what they hope the James Webb Space Telescope will reveal about our universe after launch.

Visiting the James Webb Space Telescope

Host Mat Kaplan visits the James Webb Space Telescope in California to see the observatory before it launches and speak with project leaders.

Planetary Society All-Stars Review 2020 Space Milestones

In spite of everything, 2020 was a good year for space exploration according to five of The Planetary Society’s experts.

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