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Planetary Radio

Planetary Radio

Each week, Planetary Radio visits with a scientist, engineer, project manager, astronaut, advocate or writer who provides a unique and exciting perspective on the exploration of our solar system and beyond. We also showcase regular features that raise your space IQ while they put a smile on your face.  Host Mat Kaplan is joined by Planetary Society colleagues Bill Nye the Science Guy, Bruce Betts, and Emily Lakdawalla. We hit the road now and then to produce a Planetary Radio Live show in front of an audience.  Drop us a line or enter the weekly space trivia contest at

Please support your local public radio station that airs the show! Check the station's online schedule or review our online list of affiliates. Satellite radio listeners can hear us Sunday evenings on the Sirius XM Public Radio channel.  Want to hear Planetary Radio on your local station? Ask them to contact us or review our radio affiliate information page.

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Recent Shows

A 35th Anniversary Party With Neil Tyson!

11/03/2015 | 31:47


It was a grand night at the Pasadena Civic Auditorium. CEO Bill Nye led the Planetary Society’s 35th anniversary party with guests including Neil deGrasse Tyson and Deputy NASA Administrator Dava Newman. We present a very brief sampling of the celebration.

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Humans Orbiting Mars!

09/29/2015 | 37:56


Scott Hubbard and John Logsdon led the Humans Orbiting Mars Workshop last spring. They return with Casey Dreier as the report on that workshop is released to the world.

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Zibi Turtle and a Mission to the Ice Giants

09/22/2015 | 28:50


They are the most neglected planets in our solar system, but that status may be changing. Planetary scientist Elizabeth “Zibi” Turtle celebrates NASA’s announcement that it will study a mission to Uranus or Neptune.

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Chris Carberry and Getting Humans to Mars

06/02/2015 | 28:50


Explore Mars revealed the 2015 Humans to Mars Report at a recent conference in Washington. CEO Chris Carberry gives us a quick tour of this inspiring assessment of what it will take to get more than robots to the Red Planet.

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Rob Manning and Landing on Mars

04/14/2015 | 39:56


  • Rob Manning, Chief Engineer, Mars Exploration Directorate, Jet Propulsion Laboratory

Landing on Mars is hard, and the bigger you are, the harder it gets. Rob Manning returns to tell us about one of NASA’s best hopes for getting much bigger spacecraft down there—spacecraft that may one day carry humans.

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Humans Orbiting Mars: Report on the Workshop

04/07/2015 | 37:28


A human mission to orbit Mars might be possible by 2033, and it might be accomplished at reasonable cost and with existing or nearly-ready technology. Three leaders of a recent Washington DC conference on this topic provide a report.

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Robert Bigelow and His Expandable Space Habs

03/31/2015 | 28:50


Bigelow Aerospace’s BEAM expandable/inflatable space module will be attached to the International Space Station later this year. Mat travels to the company’s headquarters for a conversation with founder and CEO Robert Bigelow.

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Big News From Little Worlds

03/24/2015 | 28:50


  • Emily Lakdawalla, Senior Editor and Planetary Evangelist, The Planetary Society

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.

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Jonathan Goff Says Let’s Redirect an Asteroid

02/24/2015 | 28:50


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.

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Planetary Radio Extra: A Deep Dive into the New NASA Budget—A New Mission to Europa, But the End of Opportunity?

02/10/2015 | 40:02


The just-released budget for the US space agency has much that fans of planetary science can be grateful for, though the news is not all pos.

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