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.

Search Planetary Radio

NASA’s New Planetary Defense Office

Lindley Johnson has just been named NASA's first Planetary Defense Officer. He's joined on this week's PlanRad by astronomer Kelly Fast, the new manager of the Near Earth Object Observation Program.

Marc Rayman’s Dawn Mission Update

The Dawn Mission Chief Engineer Marc Rayman returns for another report on the ion-engine powered mission, now orbiting 240 miles above dwarf planet Ceres in the Asteroid Belt.

Master of the Moon Rocks: NASA Astromaterials Curator Francis McCubbin

Francis McCubbin is the new Astromaterials Curator at NASA's Johnson Space Center, where the priceless collection includes the Apollo moonrocks. Join host Mat Kaplan's visit.

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.

A Tiny Explorer Called Twinkle

A small but talented UK team is building Twinkle, a small spacecraft with a big mission—exploring the atmospheres of planets orbiting other stars.

Solar System Revelations, and the World’s Biggest Telescope Threatened?

Emily Lakdawalla returns from the annual Division for Planetary Sciences meeting with big news from around the solar system. Then we talk with science journalist Traci Watson about the departure of the great Arecibo radio telescope’s Director and the funding challenge that could shut down the observatory.

A Conversation with Andy Weir of “The Martian”

“The Martian” has won universal acclaim from scientists, astronauts, NASA, science fiction fans, and people who thought they weren’t science fiction fans. Mat Kaplan talks with the author about his harrowing, uplifting, amazingly detailed and realistic tale.

OSIRIS-REx Readies for Asteroid Bennu

Dante Lauretta heads the most ambitious mission to an asteroid ever mounted. With one year left till launch, he returns to Planetary Radio with an update.

Saving the Planet: Voices From the Planetary Defense Conference

We’ve already brought you Planetary Radio Live from the 2015 PDC near Rome, Italy. Now you’ll hear a small sampling of the scientists, engineers, policymakers and media experts who spent five days considering how humanity will respond to a potentially disastrous threat. Bruce Betts celebrates the great Jupiter-Venus conjunction in What’s Up. Bill Nye and Emily Lakdawalla return next week.

The Launch of LightSail

This special edition takes you behind the scenes on May 20, 2015 as LightSail is lifted into orbit. You’ll hear the thrilling launch, meet key team members as they prepare for the big moment, and hear a special status report from Planetary Society CEO Bill Nye.

Spiraling Closer to Ceres With the Dawn Mission’s Marc Rayman

It’s the biggest dwarf planet between here and Pluto, and it has a new permanent resident. The Dawn spacecraft is orbiting Ceres in the asteroid belt, revealing it as never before. What are those bright spots anyway? We spend time with Dawn’s Chief Engineer and Director, Marc Rayman.

Saving the Planet at the Planetary Defense Conference

Planetary Radio Live was the only public event at the just-completed Planetary Defense Conference in Italy. Join us for excerpts from an all-star celebration of worldwide efforts to find, track, characterize and eventually deflect killer Near-Earth Objects.

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.

Virgin Galactic CEO George Whitesides on LauncherOne and the Return of SpaceShipTwo

6,000 job-seekers came to the new Long Beach, California home of Virgin Galactic’s LauncherOne rocket on a recent morning. We sit down with CEO George Whitesides for a conversation about this new effort and the return of SpaceShipTwo.

Jim Bell Welcomes “The Interstellar Age”

Planetary scientist and author Jim Bell has just written “The Interstellar Age—Inside the Forty-Year Voyager Mission.” He talks with Mat Kaplan about the magnificent grand tour of the outer solar system that is now headed toward the stars.

Jonathan Goff Says Let’s Redirect an Asteroid

ARM is the Asteroid Redirect Mission, and sometimes it seems that it doesn’t have a friend in the world. But it does, and Jonathan Goff of Altius Space Machines is one.

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.

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.

< 1 ... 3 45 6 >