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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.

Marc Rayman’s Dawn Mission Update

January 19, 2016 • 30:51

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.

Master of the Moon Rocks: NASA Astromaterials Curator Francis McCubbin

January 12, 2016 • 38:18

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.

Ad Astra Builds “The Martian’s” Rocket Engine

January 05, 2016 • 34:40

Mat Kaplan visits the Ad Astra Rocket Company in Texas where they are perfecting the VASIMIR electric rocket engine. Emily Lakdawalla has created a comprehensive timeline tracing missions throughout the solar system. Bill Nye salutes Planetary Society colleagues who gathered to record a Planetary Radio Extra year in review conversation. The new year’s sky is chock full of planets according to Bruce Betts.

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.

Planetary Radio Extra: Ad Astra Rocket Company Audio Tour

January 05, 2016 • 30:44

Ad Astra's Mark Carter took Planetary Radio Host Mat Kaplan on a great tour of the company's facility in mid-November of 2015. Space and science geeks are going to love this mostly unedited audio recording.

2015: A Great Year for Space Exploration

December 29, 2015 • 28:50

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.

Planetary Radio Extra: Casey Dreier on the 2016 NASA Budget

December 22, 2015 • 38:44

Mat Kaplan sits down with our Director of Advocacy, Casey Dreier, for a discussion of NASA's 2016 budget.

Congressman John Culberson on a Good Day for Space

December 22, 2015 • 33:59

The newly-approved federal budget includes great news for fans of space exploration and development. Texas Congressman John Culberson led the fight for a Europa mission, the SLS rocket, commercial crew and more. He tells us why on this week’s show.

Field Test: Planetary Deep Drill

December 15, 2015 • 28:50

Drilling through many meters of ice to Europa’s ocean or to the pristine sub-surface layers of Mars will be hard. The Planetary Deep Drill prototype has shown that it may be a practical approach. Join Mat Kaplan and Planetary Society colleagues at the field test site deep in California’s desert.

A Journey to Space

December 08, 2015 • 34:34

Journey to Space is both a new and spectacular IMAX movie and an exciting, hands-on exhibition at the California Science Center. We learn about both this week.

A Tiny Explorer Called Twinkle

December 01, 2015 • 28:50

A small but talented UK team is building Twinkle, a small spacecraft with a big mission—exploring the atmospheres of planets orbiting other stars.

Movers and Shakers at SpaceCom Expo

November 24, 2015 • 31:16

We join 1,600 space entrepreneurs and visionaries in Houston, and talk with Boeing, XCOR, Johnson Space Center Director Ellen Ochoa and more.

Solar System Revelations, and the World’s Biggest Telescope Threatened?

November 17, 2015 • 28:50

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.

From Mars to the Stars With Lou Friedman

November 10, 2015 • 47:33

The founding Executive Director of the Planetary Society has just written “Human Spaceflight: From Mars to the Stars,” an optimistic view of humanity’s future in the solar system and beyond.

A 35th Anniversary Party With Neil Tyson!

November 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.

A Conversation with Andy Weir of “The Martian”

October 27, 2015 • 1:07:51

“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.

Pluto Amazes!

October 20, 2015 • 38:40

Hal Weaver is a very happy Project Scientist. His New Horizons spacecraft has shocked his fellow researchers with magnificent images and data. He shares the excitement this week.

Big Rockets and Little LightSails

October 13, 2015 • 28:50

Digital editor Jason Davis is a lucky guy. He follows and reports on human spaceflight progress, as well as the progress of the LightSail solar sail, which is about a year from its next flight.

Imaging Hot Young Jupiters

October 06, 2015 • 28:50

Franck Marchis is on the team that has delivered an actual image of a young, hot world about 100 light years from Earth. We talk with him on the 20th anniversary of the first exoplanet discovery.

Humans Orbiting Mars!

September 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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