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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Celebrating 35 Years of the Voyager Mission

Voyagers 1 and 2 just reached 35 years of travel in space. What a great reason to celebrate! Join Voyager Project Scientist Ed Stone, Ann Druyan, Emily Lakdawalla and Robert Picardo in this special live edition of our show. Bill Nye reports on a separate celebration in London and on the International Space Station, and Bruce Betts is back in fine form with Mat Kaplan for this week’s What’s Up.

A Conversation With Telescope Inventor John Dobson

When John Dobson invented the Dobsonian telescope he changed the face of amateur astronomy. The 96-year old pioneer talks with Mat Kaplan. Emily Lakdawalla loves Curiosity’s self-portraits. Bill Nye the Science Guy is in London to host a youth webcast with International Space Station astronaut Sunita Williams. Bruce Betts keeps us from getting Lost in Space and helps Mat give away a cool Curiosity bumper sticker in What’s Up.

Author David Brin Considers and Writes "Existence"

Award-winning science fiction author, physicist and futurist David Brin returns to talk about his monumental new novel, Existence. Emily Lakdawalla previews a very busy month of great planetary science, while Bill Nye invites listeners to learn about a campaign to restore funding for the exploration of our solar system. Bruce Betts and Mat Kaplan give away another space pen in this week’s What’s Up look at the night sky, and a look back at this week in space history.

Remembering Neil Armstrong/ChemCam is Zapping Martian Rocks!

Emily Lakdawalla and Bill Nye the Science Guy join Mat Kaplan for a special remembrance of Neil Armstrong. Then we visit with the principal investigator for the first ray gun on Mars. Roger Wiens leads the ChemCam team that is using its powerful laser to zap and analyze Martian rocks. It’s just one of the Curiosity Rover success stories. Win a ChemCam bumper sticker and a Planetary Radio t-shirt in the weekly What’s Up space trivia contest!

More From Planetfest With Andrew Chaikin and Scott Hubbard

Our Planetary Radio Live celebration of Mars rover Curiosity at Planetfest continues with more from space historian Andrew Chaikin, former NASA Mars czar Scott Hubbard and Planetary Society CEO Bill Nye the Science Guy. Emily breaks the news about NASA’s choice for a Discovery mission, and Bruce Betts joins Mat Kaplan for a What’s Up look at the night sky and a new space trivia contest.

Planetary Radio Live at Planetfest 2012!

PlanRad Live welcomes space historian and writer Andrew Chaikin, former NASA Mars Czar Scott Hubbard, and Bill Nye the Science Guy to a live conversation at Planetfest: Curiosity Knows No Bounds, just a few hours before the triumphant landing of the big new rover on Mars. Host Mat Kaplan is also joined by Emily Lakdawalla, Bruce Betts and award-winning barbershop quartet Hi-Fidelity.

Astronaut Tom Jones at SETIcon

Skywalker, scientist and author Tom Jones joins us in a fireside chat about Near Earth Objects and much more. Emily Lakdawalla tours the Applied Physics Lab in Maryland. Bill Nye the Science Guy put high value on the mission of Curiosity, the MSL Rover, even if it had not landed successfully. What’s Up in the night sky.

More Planetary Radio Live at the Aquarium of the Pacific: Oceans Everywhere

We return to the Aquarium for much more of our conversation about seas on Earth and seas on other worlds, featuring Dave Bader, Kevin Hand and Bill Nye. Emily Lakdawalla concludes her video tour of Curiosity's cameras and instruments.

Planetary Radio Live at the Aquarium of the Pacific

What better place to talk about Earth's oceans and the seas of other worlds?

Fire and Ice With Volcanologist Rosaly Lopes

JPL volcanologist Rosaly Lopes has discovered more volcanos than anyone else, including 71 on Jupiter’s moon Io. She is fascinated by these fiery (and sometimes frigid) features of our dynamic solar system, and shared her love at the recent SETIcon.

Mae Jemison of the 100 Year Starship Initiative

Retired astronaut Dr. Mae Jemison leads the 100 Year Starship Initiative. You’ll hear Mat’s conversation with her about this ambitious project in a SETIcon II fireside chat.

Lockheed Martin CTO Ray Johnson

The Chief Technology Officer for the world's largest aerospace company wants more young people to consider careers as engineers.

More From the Air and Space Museum

Our special live show at the National Air and Space Museum continues with curator David DeVorkin, Space Policy Institute founder John Logsdon, Bill Nye the Science Guy, Planetary Society blogger Emily Lakdawalla and science rapper Funky 49.

Live at the National Air and Space Museum

Join us for the first half of a conversation with David DeVorkin, John Logsdon and Bill Nye.

Remembering Ray

We look back to the Planetary Society's 2003 birthday party for Ray Bradbury, with tributes from distinguished fans and eloquent words from the master himself.

Cassini Project Scientist Linda Spilker With a Saturn Mission Update

Planetary Radio's most frequent guest returns with the latest news from the great ringed world, its moons, and its rings.

Author Kim Stanley Robinson Takes Us to 2312

Kim Stanley Robinson shares his vision of a brave new solar system 300 years in the future with his new novel, 2312.

Cosmos 1: Solar Sail Special Report

Cosmos 1: Solar Sail Special Report

Solar Sail Countdown

Solar Sail Countdown

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