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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 planetaryradio@planetary.org.

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.

iTunes and other podcast aggregators like Stitcher make it easy to listen and subscribe. Just search for "Planetary Radio." or click the links below.

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Recent Shows

Planetary Radio Live: All These Worlds…

03/22/2016 | 28:50

Guests

  • Konstantin Batygin, Assistant Professor of Planetary Science, California Institute of Technology
  • Mike Brown, Planetary Astronomer, California Institute of Technology
  • Emily Lakdawalla, Senior Editor and Planetary Evangelist, The Planetary Society
  • Bill Nye, Chief Executive Officer
  • Linda Spilker, Cassini Project Scientist, Jet Propulsion Laboratory

Our live conversation about “Planet 9” and the amazing diversity of our solar system, featuring Konstantin Batygin and Mike Brown of Caltech, Senior Editor Emily Lakdawalla, Bill Nye the Science Guy and Cassini Project Scientist Linda Spilker.

More Info & Listen »

Planet 9 From Outer Space!

02/09/2016 | 49:10

Guests

  • Mike Brown, Planetary Astronomer, California Institute of Technology
  • Konstantin Batygin, Assistant Professor of Planetary Science, California Institute of Technology

Mike Brown and Konstantin Batygin fully expect a new and undemotable ninth planet will be found in the outer reaches of the solar system. The Caltech researchers talk about their findings and much more.

More Info & Listen »

Civilizations Among the Clustered Stars?

01/26/2016 | 41:48

Guests

New research indicates that globular clusters—collections of up to a million stars—could provide stable environments for life, along with opportunities for interstellar civilizations. Lead author Rosanne Di Stefano joins us to explain.

More Info & Listen »

The Royal Observatory, Greenwich and the Quest for Longitude

07/28/2015 | 43:09

Guests

Come with us on a visit to the home of the prime meridian for a conversation with the curator of the Royal Observatory, Greenwich about the race to create a practical means for determining longitude.

More Info & Listen »

Found! Beagle 2 on Mars

02/17/2015 | 28:50

Guests

  • Mark Sims, Professor of Astrobiology and Spacecraft Instrumentation, University of Leicester

The Beagle 2 Mars lander disappeared after it separated from the Mars Express orbiter on Christmas Day, 2003. Eleven years later, it has been found, partially-deployed on the Martian surface. Longtime Beagle 2 mission leader Mark Sims tells the story.

More Info & Listen »

Kip Thorne and the Science of Interstellar

12/02/2014 | 28:50

Guests

  • Kip Thorne, Richard Feynman Emeritus Professor of Theoretical Physics, CalTech

Spoiler alert. Famed physicist Kip Thorne says you might be able to survive a plunge into a black hole after all! That’s just one molecule of the fascinating science behind the science fiction film he helped create. We’ll talk about the movie and Kip’s new book, “The Science of Interstellar.”

More Info & Listen »

Digging Deep With Kris Zacny and the Planetary Deep Drill

11/11/2014 | 28:50

Guests

  • Kris Zacny, Vice President and Director of Exploration Technology, Honeybee Robotics

If there’s life on Mars, it’s probably deep beneath the surface. That’s just one reason we need a tool like Planetary Deep Drill on the red planet and other mysterious worlds around our solar system. Honeybee Robotics’ Kris Zacny introduces us to the innovative prototype.

More Info & Listen »

Journey to the Center of Jupiter: Creating Fantastic Pressure With the World’s Largest Lasers

08/19/2014 | 29:52

Guests

Physicist Gilbert "Rip" Collins of the Lawrence Livermore National Lab will tell us about recent use of the world’s most powerful lasers to recreate conditions at the cores of giant planets.

More Info & Listen »

Elisa Quintana on the Discovery of Earth 2.0

06/24/2014 | 28:50

Guests

Kepler-186f is the very first exoplanet that is both the size of our own world and in the habitable zone surrounding its star. SETI Institute scientist Elisa Quintana is lead author of the paper announcing its existence.

More Info & Listen »

Emily Lakdawalla At Her Favorite Conference While Alan Stern Stirs Up the Solar System

03/25/2014 | 28:50

Guests

  • Emily Lakdawalla, Senior Editor and Planetary Evangelist, The Planetary Society
  • Alan Stern, New Horizons Principal Investigator, Johns Hopkins University Applied Physics Laboratory

Emily shares highlights from last week’s Lunar and Planetary Science Conference, and Alan Stern provides updates on the Rosetta comet mission and his New Horizons probe that is nearing Pluto, and addresses the controversy around Uwingu’s Name a Martian Crater project.

More Info & Listen »

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