Join Donate

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.

Search Planetary Radio

We’re Sending a Flying Machine to Titan

July 10, 2019 • 56:45

NASA has given the go-ahead for Dragonfly, a flying rotorcraft that will explore Saturn’s mysterious moon Titan. Mission Principal Investigator Elizabeth “Zibi” Turtle helps us celebrate.

The News From Saturn-With Linda Spilker

June 26, 2019 • 48:22

It has been many months since the great Cassini spacecraft plunged into Saturn’s atmosphere and fiery death. Yet the mission lives on as the reams of data and images reveal much more of this beautiful world, its rings and its moons.

Flying the Skies of Saturn’s Moon Titan

January 16, 2019 • 45:47

magine soaring over what may be the solar system’s most Earth-like world, if you ignore the chill. If funded, the nuclear electric-powered Dragonfly will do exactly this. Principal Investigator Elizabeth “Zibi” Turtle shares her enthusiasm.

It’s a Hard Rain on Titan

January 17, 2018 • 43:41

A computer model based on our best data about Saturn’s cloud-shrouded moon says that torrential liquid methane pounds the surface far more frequently than previously expected. Sean Faulk and Jonathan Mitchell of UCLA explain.

Ed Stone and Forty Years of Voyager in Space

August 16, 2017 • 32:00

It is most space fans’ favorite planetary science mission, and with good reason. We visit with the man who has been in charge of Voyager mission science for more than four decades.

An Eye on the Sun (In the Middle of a Lake)

August 02, 2017 • 52:28

The world’s most powerful solar telescope has just been renamed for the man responsible for its creation. We’ll meet astrophysicist and helioseismologist Phil Goode, and we’ll enjoy a tour of the Goode Solar Telescope.

Human Spaceflight: Coming Back to America

May 24, 2017 • 47:39

Astronauts may soon ride on US rockets and in US spaceships for the first time since the last Space Shuttle flight. Jon Cowart of NASA is working with SpaceX toward the first launch of a Dragon spacecraft with humans on board.

Visiting Worlds Fantastic with Bonnie Buratti

May 10, 2017 • 56:09

Veteran Jet Propulsion Lab planetary scientist Bonnie Buratti talks with Mat about the wonder of our solar neighborhood that she explores in "Worlds Fantastic, Worlds Familiar—A Guided Tour of the Solar System."

Bill Nye Saves the World…With Space

April 26, 2017 • 34:53

It was a big week for the Science Guy, and for science. Bill Nye served as honorary co-chair of the March for Science in Washington DC. His new Netflix series, Bill Nye Saves the World, premiered the next day. Two of the show’s thirteen episodes are devoted to space science and exploration. Bill talks about all this in a special conversation with Mat Kaplan.

The Final Countdown at Saturn

January 31, 2017 • 46:17

Planetary Radio’s most frequent guest, Project Scientist Linda Spilker, returns with another update on the Cassini mission that is approaching its grand finale.

Chief Scientist Ellen Stofan Leaves NASA

January 17, 2017 • 50:22

For well over three years, planetary scientist Ellen Stofan has worked directly with NASA Administrator Charles Bolden to help coordinate and expand the myriad science efforts by the agency. We talk with her as she ends this remarkable tenure.

Pluto and Titan and Iran, Oh My!

November 15, 2016 • 36:13

Back to the annual meeting of the AAS Division for Planetary Sciences this week, where Mat Kaplan visited with experts on worlds of ice including Titan and Pluto, with a side trip to the dunes of Iran.

Cassini at Saturn: The Final Year

September 20, 2016 • 29:02

The great Cassini spacecraft has a year to go before it plunges into the ringed planet. Project Scientist Linda Spilker returns with more amazing mission science.

Sailing the Canyons of Titan

August 16, 2016 • 38:39

Steep canyons on Saturn's moon Titan are filled with liquid methane. That's the discovery just announced by an international team of Cassini scientists, including Alex Hayes.

Planetary Radio Live: All These Worlds…

March 22, 2016 • 28:50

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.

Exploring Saturn With Cassini

February 23, 2016 • 32:24

Cassini Mission Project Scientist Linda Spilker returns with the latest discoveries at the beautiful ringed planet, its moons and its rings.

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.

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.

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.

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.

Items 1 - 20 of 37  12Next
Planetary Society logo

Support The Planetary Society


Help Planetary Radio amplify its broadcast

Contribute Now