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Planetary Radio Episodes

For every week 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. We also showcase regular features that raise your space IQ while they put a smile on your face.

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Mars’ Atmosphere…Lost in Space!

April 05, 2017 • 33:17

Mars was once a warm and wet world. Then its dense, protective atmosphere mostly vanished. Learning why was one of the greatest mysteries in planetary science. The answer has just been delivered by the MAVEN orbiter.

A Little Rocket Company Shoots for the Moon

January 03, 2017 • 57:33

CEO Randa Milliron introduces us to Interorbital Systems, which wants to put your payload in orbit for as little as $8,000. Can they do it?

Marvelous Martian MAVEN

December 27, 2016 • 38:32

MAVEN, the Mars Atmosphere and Volatile Evolution orbiter, has gone a long way toward solving the mystery of the Red Planet’s missing water and air. The University of Colorado’s Nick Schneider says it is also revealing gorgeous clouds, auroras and glowing skies.

Chris McKay, Larry Niven and Andy Weir at the Contact Conference

June 07, 2016 • 32:32

Space art and science fiction joined science fact at the 2016 Contact Conference in Sunnyvale, California. We talk with three well-known visionaries.

Planetary Radio Extra: Planetary Society Experts 2015 Review

January 05, 2016 • 61:40

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.

Where Did The Air Go? Bruce Jakosky on the MAVEN Mars Mission

December 23, 2014 • 28:50

Not just the air. Where is the water that was plentiful on the red planet billions of years ago? MAVEN may help answer these questions. Principal Investigator Bruce Jakosky reports on the early, exciting science data.

A Conversation With Congressman Lamar Smith

September 30, 2014 • 28:50

The Chairman of the powerful Science, Space and Technology Committee in the U.S. House of Representatives joins us for a talk about planetary science, Europa, a human flyby of Mars and much more.

Planetary Radio Live: MAVEN Arrives at Mars!

September 23, 2014 • 28:50

The latest guest of the Red Planet arrived in orbit on the evening of September 22, 2014. Planetary Radio Live was watching with fingers crossed in Pasadena, California.

Pathways To Exploration: John Logsdon Analyzes the Human Spaceflight Report

June 17, 2014 • 35:42

The National Research Council released its long-awaited report June 4th. Distinguished space policy analyst John Logsdon returns to Planetary Radio with his take on this latest attempt to determine the proper role of humans in space.

A 2014 Preview From Emily Lakdawalla

January 06, 2014 • 28:50

24 spacecraft are either busy exploring the solar system or speeding toward an exciting destination. The Planetary Society's Senior Editor takes us on a whirlwind advance tour.

Planetary Radio Live Celebrates the Launch of MAVEN

November 18, 2013 • 28:50

The successful launch of MAVEN was covered by Mat Kaplan, Bruce Betts and Emily Lakdawalla, with special, launch site reports from Jim Bell and Bill Nye.

SpaceUp LA: What would you do with $13 Billion?

November 11, 2013 • 32:32

What would YOU do with an extra $10 Billion for space exploration and development? That’s what Mat Kaplan asked the passionate space enthusiasts at the 2013 SpaceUp LA Unconference.

MAVEN Mars Mission's Bruce Jakosky

September 16, 2013 • 28:50

The Mars Atmosphere and Volatile Evolution Mission (MAVEN) orbiter leaves for the red planet in November of 2013. Bruce Jakosky of the University of Colorado Boulder is its Principal Investigator. Mat Kaplan sat down with Bruce at a recent MAVEN workshop.

Looking Back, Looking Forward: Beginning a New Year In Space

December 31, 2012 • 28:50

Planetary Society experts review the challenges and triumphs of 2012 and look forward to a new and exciting year. You’ll hear Bill Nye the Science Guy, Emily Lakdawalla on new missions, Casey Dreier on “Saving our Science,” and Bruce Betts’ review of great projects, as well as a musical rendition of “Random Space Fact.”

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