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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Subsurface granite on the Moon? The anatomy of a lunar hot spot

Matt Siegler from the Planetary Science Institute shares his team's surprising findings about the granite formation that might lie beneath Compton-Belkovich, a thorium-rich hot spot on the far side of the Moon.

An essential ingredient for life in the oceans of Enceladus

Chris Glein, a lead scientist at the Southwest Research Institute, joins Planetary Radio to talk about the discovery of phosphorus in the oceans of Saturn’s moon Enceladus and the implications for the search for life.

Comparing the rivers of Earth, Mars, and Titan

Sam Birch, an assistant professor at Brown University, explores what we know about the alluvial rivers of Earth, Mars, and Saturn's moon Titan.

Space Policy Edition: What’s Going on with: Congress, MSR, and FAA Reauthorization?

We check in on the congressional budget process for NASA, Mars Sample Return’s spiraling cost growth, and the impending end of the regulatory holiday for human commercial space launch companies.

2Fast 2Curious: Finding the source of the fast solar wind

James Drake from the University of Maryland joins Planetary Radio to talk about the latest results from NASA's Parker Solar Probe as it soars closer to our star than any spacecraft in history.

The disappearing act of Saturn's young rings

Richard Durisen and Paul Estrada join Planetary Radio to discuss their research on the surprisingly recent formation of Saturn's rings and why they are disappearing over time.

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.

Starstruck with Sarafina El-Badry Nance

Sarafina El-Badry Nance joins Planetary Radio to discuss her new book, Starstruck: A Memoir of Astrophysics and Finding Light in the Dark.

Exoplanet enigma: Unpacking the discovery of a "forbidden" planet

Shubham Kanodia, the lead on a paper about a so-called forbidden planet, TOI 5202 b, joins us to talk about this strange world and why it's upending our understanding of planetary formation.

The case for saving VERITAS

Darby Dyar, Deputy Principal Investigator for NASA's VERITAS mission to Venus, joins Planetary Radio to share the human story behind the spacecraft and make a case for saving the mission.

Adventures at the 2023 Planetary Defense Conference

Planetary Radio creator Mat Kaplan shares a look behind the scenes at the 2023 Planetary Defense Conference in Vienna, Austria.

Juice mission liftoff: A new era in icy moon exploration begins

Join us as we celebrate the successful launch of the European Space Agency's Juice mission with project scientist Olivier Witasse.

Two Years of Hope: Celebrating the Emirates Mars Mission

Join us as we celebrate the accomplishments of a truly inspiring space mission - the United Arab Emirates' Hope probe, which has spent two amazing years orbiting Mars!

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.

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.

Looking back on Voyager’s 45th Anniversary

Planetary Radio’s creator Mat Kaplan guest hosts for this look back at the Jet Propulsion Lab’s celebration of the 45th anniversary of the Voyager mission.

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.

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.

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