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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7 More Minutes of Terror: Perseverance Arrives at Mars

JPL engineer Gregory Villar prepares us for the perilous descent and landing of the 2020 Mars rover on February 18th.

A Symphony for 7 Moons

Composer Amanda Lee Falkenberg is joined by Cassini project scientist Linda Spilker and retired astronaut Nicole Stott as she shares excerpts from The Moons Symphony.

Solar Cruiser: A Giant Sail Prepares for Space

NASA has given the green light to Principal Investigator Les Johnson and his team for construction of a solar sail that dwarfs all that have come before.

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.

Astronaut Stephanie Wilson Might Walk on the Moon

18 astronauts on the Artemis Team have a shot at walking on the Moon, and Stephanie Wilson is one of them.

What Do You Need to Make Martian Oxygen? MOXIE!

Making oxygen from the Martian atmosphere will be essential if humans are ever to visit and work on the Red Planet, and the MOXIE experiment will soon show us how.

Welcoming a New Leader, and China on the Final Frontier

Bill Nye helps us welcome the Planetary Society’s new president who also leads a new Moon mission, while China’s lunar sample return spacecraft is headed home.

Observatory Director Francisco Córdova on the Devastating Loss of Arecibo

Host Mat Kaplan talked with the Arecibo Observatory director just hours before the giant radio telescope came crashing down.

Revealing Mars From Above, and Crew Dragon is Go!

Two pioneering Mars orbiters are still doing great work above the Red Planet, while the first operational Crew Dragon spaceship has delivered four astronauts to the International Space Station.

A Deep Dive into Asteroid Bennu With Dante Lauretta

The leader of the OSIRIS REx asteroid sample return mission shares more details of last week’s encounter in an exclusive interview, while we also learn about the proposed mission to look for life on Saturn’s moon Enceladus.

Exploring the Cosmos with Heidi Hammel and AURA

Astronomer and planetary scientist Heidi Hammel’s AURA shines bright across our solar system and beyond.

Katie Mack and The End of Everything

How will the universe end? That’s the question explored by cosmologist Katie Mack in her very entertaining new book.

Another Ray Gun Heads for Mars. We Hear It Working.

SuperCam principal investigator Roger Wiens shares how his new and improved laser-based spectrometer will help look for past life in Jezero Crater, while its microphone lets us listen to the Red Planet.

Hope Leads the Way to Mars

Our special guests are the leaders of the Emirates Mars Mission whose Hope spacecraft is now headed for the Red Planet.

A Mars Mission Begins, a Comet Exits, and the Future of Planetary Science

The United Arab Emirates is headed for Mars as comet NEOWISE speeds back to the outer reaches of the solar system, and three white papers address the future of planetary science and defense.

How Perseverance will Search for Life on Mars

Join the mission’s deputy project scientist as the Perseverance rover prepares to search for life on the Red Planet.

To Pluto and Beyond with Alan Stern

Principal Investigator Alan Stern returns on the 5th anniversary of the New Horizons encounter with Pluto to tell us about the wealth of knowledge the spacecraft is still sending home from across the solar system.

Jim Bell Sends New Eyes to Mars

The leader of the Mastcam-Z team talks about how the best cameras ever on the surface of Mars will help us explore a region that could once have supported life.

China on the Final Frontier

China has big plans for a space station, exploration of the Moon and Mars, and possibly a mission that will follow Voyager beyond the edge of the solar system.

Celebrating 30 Years of Hubble with Astronaut John Grunsfeld

Astrophysicist and former astronaut John “Hubble Repairman” Grunsfeld looks back over three decades of beautiful science and inspiration delivered by the Hubble Space Telescope.

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