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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Exploring Saturn With Cassini

Cassini Mission Project Scientist Linda Spilker returns with the latest discoveries at the beautiful ringed planet, its moons and its rings.

Zero-G With OK Go!

OK Go has gone where no band has gone before to make a music video. Mat talks with Damian Kulash and Tim Nordwind about the hazards, thrill and promise of making art in free fall.

Planetary Radio Extra: Planetary Society Experts 2015 Review

Bruce Betts, Jason Davis, Casey Dreier and Emily Lakdawalla gather with Mat Kaplan for a fascinating and informative Planetary Radio Extra year-in-review roundtable discussion.

2015: A Great Year for Space Exploration

Our year-end review features the “best of 2015” lists from Jason Davis, Casey Dreier, Emily Lakdawalla and Bill Nye the Science Guy. What’s Up offers planets, a comet, and a nice prize package for the space trivia contest.

Planetary Radio Extra: Casey Dreier on the 2016 NASA Budget

Mat Kaplan sits down with our Director of Advocacy, Casey Dreier, for a discussion of NASA's 2016 budget.

Congressman John Culberson on a Good Day for Space

The newly-approved federal budget includes great news for fans of space exploration and development. Texas Congressman John Culberson led the fight for a Europa mission, the SLS rocket, commercial crew and more. He tells us why on this week’s show.

Big News From Little Worlds

Senior Editor Emily Lakdawalla has returned from the Lunar and Planetary Science Conference in Texas with the latest revelations about our solar system. She shares them in an extended report.

Found! Beagle 2 on Mars

The Beagle 2 Mars lander disappeared after it separated from the Mars Express orbiter on Christmas Day, 2003. Eleven years later, it has been found, partially-deployed on the Martian surface. Longtime Beagle 2 mission leader Mark Sims tells the story.

Year of the Icy Worlds

We’ll visit the Jet Propulsion Lab on its Icy Worlds Day to learn more about spacecraft exploring Ceres, Enceladus and Europa from leaders of these missions.

Planetary Radio Extra: A Deep Dive into the New NASA Budget - A New Mission to Europa, But the End of Opportunity?

The just-released budget for the US space agency has much that fans of planetary science can be grateful for, though the news is not all pos.

Tales From a 4 Billion Year Old Piece of Mars...On Earth

Robina Shaheen and Mark Thiemens tell us how an ancient Mars meteorite has revealed much about the red planet. Mat holds a tiny fragment of the rock in their UC San Diego lab.

The Exciting Year Ahead on the Final Frontier

The Planetary Society’s experts look forward to a great year of firsts in the solar system and beyond.

2014: The Year in Space

Our annual review of the greatest events and accomplishments over the last year features analysis and commentary by Bill Nye the Science Guy, Emily Lakdawalla, Jason Davis, Casey Dreier and Bruce Betts, along with a special new year’s gift of Neil deGrasse Tyson.

Sara Seager and the Search for Earth’s Twin

MIT planetary scientist and astrophysicist Sara Seager is on a quest. She wants to find a warm, wet exoplanet with signs of life. It could be Earth 2.0.

Yale’s Debra Fischer and the Ever More Precise Search for New Worlds

It’s terribly hard to find exoplanets that look like our homeworld. The search requires development of astoundingly powerful and precise instruments. That’s the job Debra Fischer and her team have taken on.

A Starlight Festival Cassini Mission Update

Cassini Project Scientist Linda Spilker joins us at the first Starlight Festival in Big Bear Lake, California, and festival MC Andre Bormanis makes a bonus appearance on the show.

Spinoff 2013: Bringing Space Technology Home

NASA has just published

Special Planetary Radio Advocacy Report From Casey Dreier: A Good Week in Washington

Planetary Radio host Mat Kaplan learns why Director of Advocacy Casey Dreier is cautiously optimistic about the budget outlook for planetary science and exploration, so long as Planetary Society members and others keep making their voices heard in the nation's capitol.

Rocketing Into the Aurora With Neal Brown

It’s back to Alaska, this time to the Poker Flat Research Range, where former Director Neal Brown and his staff launched sounding rockets into the heart of the Aurora Borealis. Emily Lakdawalla explores newly-discovered and very distant dwarf planets, and Bill Nye the Science guy has the latest on NASA’s planetary science budget.

Exploring Black Holes and Supernovae With NuSTAR

Principal Investigator Fiona Harrison provides an X-ray tour of some of the universe's most fascinating objects, Casey Dreier has analysis of NASA's 2015 budget plans, and Bill Nye sees the inherent optimism of science in the verification of another 715 exoplanets.

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