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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Apollo 13 astronaut Fred Haise

Fred Haise takes us on board the mission that almost didn’t make it home from the Moon and shares many other stories.

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.

Sally Ride: Revisiting our 2005 conversation

A first-ever encore of our wonderful conversation with the first American woman in space.

Mars Beckons: The 2021 Humans to Mars Summit

Highlights of the annual gathering of leaders and experts who are building toward humans walking on the Red Planet.

The Wonderful: A new documentary about the International Space Station

Director Clare Lewins and NASA astronaut Cady Coleman discuss the new documentary "The Wonderful: Stories from the Space Station."

Andy Chaikin on Apollo 15 and the lessons of Apollo

Space historian and author of A Man on the Moon Andy Chaikin returns as we celebrate Apollo 15’s 50th anniversary.

The High Frontier: A New Documentary About Gerard K. O’Neill

Gerard K. O’Neill envisioned vast, magnificent human settlements in space. His followers, including Jeff Bezos, are working to turn his vision into reality.

The First Space Shuttle Pilot: Bob Crippen on the 40th Anniversary of STS-1

Robert Crippen and John Young became the first humans to fly a space shuttle into orbit when Columbia launched on April 12, 1981.

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.

Space Policy Edition: Operation Moonglow and the Global Impact of Apollo

Space historian Teasel Muir-Harmony argues in her fascinating new book that the Apollo lunar program was promoted as a triumph of, not for, all mankind.

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.

Protectors of Earth! (and Other Worlds)

NASA’s planetary protection officer joined Mat Kaplan’s Humans to Mars summit panel for a great conversation about protecting worlds throughout the solar system from what could be devastating contamination.

Space Policy Edition: The Moon-to-Mars Strategy, with Dr. Scott Pace

The National Space Council’s Scott Pace talks with Casey Dreier about the current administration’s sweeping new strategy that integrates all elements of space development and exploration.

Crew Dragon Triumphant, and a Planetary Society Founder Remembers

Splashdown! The astronaut and former leader of Dragon capsule development at SpaceX is back to celebrate the spacecraft’s successful mission.

Staying Alive in Space

Are we learning how to keep men and women alive on a 3-year round trip to Mars?

Space Policy Edition: NASA’s Gamble Pays Off

The safe arrival of SpaceX’s Crew Dragon at the International Space Station is a huge success for NASA and policymakers who gambled years ago on the value of commercial partnerships for the agency.

Crew Dragon Thrills While Mars Chills

After a special message we present highlights of the successful arrival at the International Space Station of the Crew Dragon spacecraft, followed by a visit to chilly Mars with planetary scientist Edgard Rivera-Valentin.

Crew Dragon Deep Dive with Astronaut Garrett Reisman

Former astronaut Garrett Reisman helped lead development of the SpaceX Crew Dragon spacecraft that is about to carry astronauts to the International Space Station.

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