Planetary Radio

Series produced by Mat Kaplan

Series image

The Planetary Society's travel show that takes you to the final frontier, featuring commentary by Society CEO Bill Nye the Science Guy.

Public radio's only long format, weekly series devoted to space exploration and the scientists, engineers, astronauts and visionaries who lead it. Most episodes include an in-depth interview along with regular segments that incude:

Planetary Society CEO Bill Nye the Science Guy's weekly commentaries...Emily Lakdawalla's Snapshots From Space...What's Up! (...in the night sky, with other fun and intriguing space info and a weekly contest.)

Several episodes each year are recorded live before an enthusiastic audience, often with live music. We also cover special space events, like the landing of the Curiosity Mars Rover, and take listeners to the places where scientists learn about the cosmos, like Chile's Atacama Desert.

Episodes are available from the PRSS each Tuesday on channel A68.5, from 1600-1630 Eastern. We also make a 128kb MP3 available to stations at our website.

Every week, Planetary Radio visits with a scientist, engineer, astronaut, project manager, advocate, visionary or writer who can provide a unique perspective on the quest for knowledge about our solar system and beyond. We also showcase regular features that raise your space IQ while they put a smile on your face.

Past guests have included Buzz Aldrin, Sally Ride, X Prize Founder Peter Diamandis, Ray Bradbury, Bill Nye the Science Guy, Steve Squyres of the Mars Exploration Rover Project, Galileo's Daughter author Dava Sobel, interplanetary volcano expert Rosaly Lopes, the European Space Agency's Bernard Foing and scores of other leaders.

Each episode also includes an irreverent look at the current night sky with astronomer and Planetary Society Director of Projects Bruce Betts. These "What's Up!" segments also include a Random Space Fact, This Week in Space History, and our popular weekly space trivia contest.

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Public radio's only long format, weekly series devoted to space exploration and the scientists, engineers, astronauts and visionaries who lead it. Most episodes include an in-depth interview along with regular segments that incude: Planetary Society CEO Bill Nye the Science Guy's weekly commentaries...Emily Lakdawalla's Snapshots From Space...What's Up! (...in the night sky, with other fun and intriguing space info and a weekly contest.) Several episodes each year are recorded live before an enthusiastic audience, often with live music. We also cover special space events, like the landing of the Curiosity Mars Rover, and take listeners to the places where scientists learn about the cosmos, like Chile's Atacama Desert. Episodes are available from the PRSS each Tuesday on channel... Show full description


329 Pieces

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They are not for everyone, but there’s no doubt that alcoholic beverages have been part of human culture for as long as there has been human cultur...

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  • Added: Dec 04, 2019
  • Length: 28:50
  • Purchases: 6
Caption: Anheuser Busch barley seed experiment in development at Space Tango’s Tangolab before heading to the International Space Station as a modular CubeLab, Credit: Mat Kaplan
Organizations are using the microgravity environment of the International Space Station to develop unique new products. One of them is Kentucky-bas...

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  • Added: Nov 27, 2019
  • Length: 28:50
  • Purchases: 6
Caption: Senior Editor Emily Lakdawalla visits Mars rover Curiosity at JPL., Credit: Mat Kaplan
Our own Emily Lakdawalla, Planetary Society senior editor and book lover, shares her 2019 list of favorite space books. She also presents a list of...

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  • Added: Nov 20, 2019
  • Length: 28:50
  • Purchases: 8
Caption: Saturn and its beautiful rings, imaged by the Cassini spacecraft., Credit: NASA/JPL-CALTECH
The outspoken planetary scientist who led the Cassini imaging team finally sits down with Mat Kaplan for a revealing, fun conversation. We also tal...

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  • Added: Nov 12, 2019
  • Length: 28:50
  • Purchases: 7
Caption: Pete Conrad of the Apollo 12 mission next to the Surveyor 3 robotic lander on the Moon., Credit: NASA
Jason Davis helps us celebrate the 50th anniversary of Apollo 12. The Planetary Society wants to hear your space goals, accomplishments and dreams...

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  • Added: Nov 06, 2019
  • Length: 28:50
  • Purchases: 8
Caption: Sasha Sagan and Mat Kaplan enjoy a moment in the Planetary Society studio., Credit: Planetary Society/Merc Boyan
Bill Nye says of Sasha Sagan’s new book, “Sagan finds the meaning of life everywhere—with her family, around the world, and especially among the st...

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  • Added: Oct 30, 2019
  • Length: 28:50
  • Purchases: 8
Caption: Artist concept of a very wet, ancient Mars., Credit: Wikimedia Commons
Planetary scientist Briony Horgan and her team want to know how long liquid water flowed on the surface of the Red Planet before that world froze. ...

Bought by CI Dolphin Radio, KDNK, KBUT, KWMR, WMUU-LP and more


  • Added: Oct 23, 2019
  • Length: 28:50
  • Purchases: 10
Caption: 2)	Astronaut Mae Jemison and Planetary Society Founder and Executive Director Emeritus Lou Friedman on stage at the 2019 NIAC Symposium’s banquet., Credit: Mat Kaplan
The NASA Innovative Advanced Concepts program gathers its “fellows” each year to share what they’ve learned about some of the most fascinating scie...

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  • Added: Oct 16, 2019
  • Length: 28:50
  • Purchases: 8
Caption: This artist’s view shows the hot Jupiter exoplanet 51 Pegasi b, sometimes referred to as Bellerophon, which orbits a star about 50 light-years from Earth in the northern constellation of Pegasus (The Winged Horse). This was the first exoplanet around a no, Credit: ESO/M. Kornmesser/Nick Risinger
Astronomer and astrophysicist Michel Mayor has just been awarded the 2019 Nobel Prize for physics. Listen to Mat’s 2016 conversation with this reve...

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  • Added: Oct 09, 2019
  • Length: 28:50
  • Purchases: 8
Caption: A large asteroid narrowly misses Earth., Credit: NASA
Planetary scientist Vishnu Reddy studies space objects ranging from satellite debris to planet-killing asteroids. He shares the status of our effo...

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  • Added: Oct 01, 2019
  • Length: 28:50
  • Purchases: 8
Caption: Brad Pitt in the new science fiction film, Ad Astra., Credit: 20th Century Fox
Brad Pitt sets out across the solar system to save Earth in the new space epic. Host Mat Kaplan enjoys a far-reaching conversation with the co-scre...

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  • Added: Sep 24, 2019
  • Length: 28:50
  • Purchases: 7
Caption: Science fiction author David Brin made a presentation at this year's Starship Congress in San Diego, California, Credit: Icarus Interstellar
Science fiction writer and futurist David Brin is one of our favorite guests. Finding him at the just-completed Starship Congress in San Diego, Cal...

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  • Added: Sep 18, 2019
  • Length: 28:50
  • Purchases: 7
Caption: Artist concept of a black hole emitting gamma-ray bursts., Credit: NASA
This US research center has been part of more than 200 space missions, but it’s not a NASA facility! The Los Alamos National Laboratory in New Mexi...

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  • Added: Sep 11, 2019
  • Length: 28:50
  • Purchases: 7
Caption: Comet 67P/Churyumov-Gerasimenko, pictured with the European Space Agency's Rosetta orbiter and Philae lander, Credit: ESA
First we return to JPL for an update on the Mars Helicopter that has just been attached to the belly of the 2020 Mars Rover. Then it’s across the p...

Bought by CI Dolphin Radio, KCNP, KDNK, KWMR, KBUT and more


  • Added: Sep 04, 2019
  • Length: 28:50
  • Purchases: 9
Caption: Artist concept of the Astrobotic Peregrine lander on the lunar surface., Credit: Astrobotic
Astrobotic is one of several companies that are building small, robotic landers to take commercial payloads to the surface of the Moon. With a new ...

Bought by CI Dolphin Radio, KDNK, KBUT, KWMR, KMXT and more


  • Added: Aug 27, 2019
  • Length: 28:50
  • Purchases: 8
Caption: Artist concept of humans exploring Mars, Credit: NASA/Pat Rawlings, SAIC
Rick Davis is the perfect person to co-lead NASA’s Mars Human Landing Sites Study. No one is more devoted to putting human bootprints on the Red Pl...

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  • Added: Aug 21, 2019
  • Length: 28:50
  • Purchases: 6
Caption: Buzz Aldrin is protected by his fabric moonsuit in this classic photo by Neil Armstrong., Credit: NASA
Host Mat Kaplan in a long and fascinating conversation with Nicholas de Monchaux, author of Spacesuit: Fashioning Apollo. This great book is about ...

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  • Added: Aug 13, 2019
  • Length: 28:50
  • Purchases: 7
Caption: Planetary Society CEO Bill Nye with host Mat Kaplan during Planetary Radio Live show at Science Museum Oklahoma., Credit: Science Museum Oklahoma
Join Planetary Society CEO Bill Nye and host Mat Kaplan as they visit Oklahoma City’s outstanding public science museum. You’ll meet University of...

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  • Added: Aug 07, 2019
  • Length: 28:50
  • Purchases: 9
Caption: First hi-res image returned by LightSail 2 after deployment of its sails reveals Baja California far below., Credit: The Planetary Society
It will be the first flying machine on another world. Mars Helicopter Project Manager MiMi Aung shares her plans. There’s big news about The Planet...

Bought by KDNK, WXAV 88.3FM, KBUT, KWMR, KRZA and more


  • Added: Jul 31, 2019
  • Length: 28:50
  • Purchases: 7
Caption: The LightSail 2 mission operations team moments before the cubesat's big sail was deployed., Credit: Mat Kaplan
Join us as the little cubesat successfully unfurls its solar sail. You’ll hear from members of the LightSail 2 mission team on the morning of July ...

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  • Added: Jul 24, 2019
  • Length: 28:50
  • Purchases: 7