Planetary Radio Episodes
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.
The human journey to the Red Planet is long and hard, but Mat’s conversation with three NASA Associate Administrators at the Humans to Mars Summit was filled with cautious optimism.
The Aerospace Corporation has been innovating since 1960. Now it’s headed by a former leader of “New Space” company Virgin Galactic. President and CEO Steve Isakowitz talks about the evolving culture of the space industry.
Leaders of the quest to find, understand and protect ourselves from the asteroids and comets called Near Earth Objects gathered with host Mat Kaplan for a live conversation about this existential threat from space.
We are joined by British physicist turned comedian and actor Ben Miller, author of The Aliens are Coming! The Extraordinary Science Behind our Search for Life in the Universe.
Marilynn Flynn, Simon Kregar and Rick Sternbach are masters of space art. They talk about how their work furthers science and captures the imagination.
Host Mat Kaplan traveled to California’s Mojave Desert for a tour of Virgin Galactic’s The Spaceship Company, where the second SpaceShipTwo was built and is undergoing flight tests. TSC Executive VP Enrico Palermo was his guide.
In two years a Near Earth Asteroid now known as Bennu will have a visitor from Earth. OSIRIS-REx Principal Investigator Dante Lauretta reports on his mission’s successful launch.
In honor of OSIRIS-REx—NASA’s newest asteroid mission—we explore the policy and history of near-Earth Objects: why NASA explores them, how the government plans to find and defending the planet, and the how policy can keep up with ambitious plans to mine asteroids.
PlanRad’s celebration of Asteroid Day (June 30th) continues as we call UCLA grad student Adam Greenberg at the Arecibo Observatory in Puerto Rico.
OSIRIS-REx will launch toward Near Earth Asteroid Bennu soon. In an early celebration of Asteroid Day, mission leader Dante Lauretta tells us how learning about asteroids may teach us about our own origins, and help us avoid a cataclysmic impact.
Michel Mayor and his team rocked the astronomy world with their 1995 announcement, but this modest man says it was a discovery whose time had come.
The new Mars Science Laboratory Project Scientist is not new to the mission. Ashwin Vasavada has worked on the Curiosity rover since 2004.
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.
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.
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.
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.
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 small but talented UK team is building Twinkle, a small spacecraft with a big mission—exploring the atmospheres of planets orbiting other stars.
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.
“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.


