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. The full show archive is available for free.

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Inside Virgin Galactic’s SpaceShipTwo

Host Mat Kaplan traveled to California’s Mojave Desert for a tour of Virgin Galactic’s The Spaceship Company, where the second SpaceShipTwo was built and is undergoing flight tests. TSC Executive VP Enrico Palermo was his guide.

Sailing the Canyons of Titan

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.

Celebrating Yuri's Night 2016 with Astronaut Samantha Cristoforetti

Happy Yuri’s Night! We’re partying under Space Shuttle Endeavour in the first of two shows featuring interviews from the worldwide celebration of space. Star Trek’s Robert Picardo will talk about his new video newsletter, the Planetary Post, and we’ll visit with Samantha Cristoforetti, who returned last June from 200 days aboard the International Space Station.

Planetary Radio Live: All These Worlds…

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

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

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

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

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!

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.

Cassini Update AND LightSail Spreads its Wings!

Cassini Project Scientist Linda Spilker, returns with another update on the magnificent mission at Saturn. You’ll also hear Bill Nye and the moment when LightSail began to deploy its solar sail.

Humans Orbiting Mars: Report on the Workshop

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.

Year of the Icy Worlds

We’ll visit the Jet Propulsion Lab on its Icy Worlds Day to learn more about spacecraft exploring Ceres, Enceladus and Europa from leaders of these missions.

A Recipe for a Small Planet

Astronomer and planetary scientist Courtney Dressing is the lead author of research that may have found the formula for the mass and composition of Earth-like planets. She reveals the ingredients and why she spent time at JPL while in high school.

The Exciting Year Ahead on the Final Frontier

The Planetary Society’s experts look forward to a great year of firsts in the solar system and beyond.

Cassini Mission Update From Project Scientist Linda Spilker

Cassini is safe! Project scientist Linda Spilker returns with a regular update on Saturn, its moons and rings not long after learning that the mission is funded through its 2017 plunge into the planet.

Microbes in Orbit: Cheryl Nickerson’s Revealing Biomedical Research

You may have heard that the sometimes deadly Salmonella bacterium becomes stronger in microgravity. Cheryl Nickerson tell us about this and other results her team has conducted in low Earth orbit.

A 2014 Preview From Emily Lakdawalla

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.

A Big Week for Space Science at the AGU and Beyond

The annual fall meeting of the American Geophysical Union revealed lots of science, some of it astounding. Emily Lakdawalla was there with Advocacy and Outreach Coordinator Casey Dreier, whose news was not quite as good.

Emily Lakawalla's DPS Report

The Planetary Society’s Senior Editor and Planetary Evangelist recaps this year’s revealing meeting of the Division for Planetary Sciences (DPS).

JPL and England Wave at Saturn

Hundreds came out on the JPL mall on Friday, July 19th to salute the Cassini spacecraft as it captured a rare image of Earth from the outer solar system. Among them were the mission Deputy Project Scientist, Scott Edgington, and the Cassini Program Manager, Earl Maize.

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