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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The New Horizons Initiative

Carl Sagan’s longtime artistic collaborator, Jon Lomberg, designed the cover for the Voyager Interstellar Record. Now he wants to upload another message from Earth to New Horizons, the spacecraft on its way to Pluto.

Gregory and James Benford on the "Starship Century"

“Starship Century—Toward the Grandest Horizon” is the new collection of fact and fiction assembled by Gregory and James Benford. The brothers are among the leaders of a renaissance in research and thinking about interstellar travel. They have returned to Planetary Radio to talk about this story of human destiny among the stars.

Europa Report--New Science Fiction Film Embraces the Science

If you’re willing to accept the premise, the thrilling new independent feature film presents one of the most scientifically and technically accurate tales ever put on screen. We’ll talk with the director and producer, and then ask science advisor Kevin Hand for a reality check.

One In A Million!

UC Berkeley SETI researcher Andrew Siemion and his colleagues have put an upper limit on the number of civilizations in our galaxy that are capable of giving us a call. He’ll explain their reasoning and provide other search updates.

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

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.”

All Together Now! The News From Curiosity

Mars Science Laboratory Project Scientist John Grotzinger's fascinating comments at the December 3 press conference, followed by analysis from Emily Lakdawalla.

Curiosity Sniffs Martian Air/Shuttle Endeavour Opens to the World

Scientists have revealed the first data gathered by Curiosity, the Mars Science Laboratory Rover, about the Martian atmosphere, while Space Shuttle Endeavour has opened to the public.

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?

SETI Scientist Jill Tarter Continues the Search

The Director of the Center for SETI Research is thrilled to have the Allen Telescope Array back in the hunt for extraterrestrial intelligence. She also tells us about SETILive.

James Webb Space Telescope Status Report from Deputy Program Director Eric Smith

James Webb Space Telescope Status Report from Deputy Program Director Eric Smith

Is Anybody Home? Assessing A Planet's Habitability

Is Anybody Home? Assessing A Planet's Habitability

Planetary Radio LIVE! With John Callas of the Mars Exploration Rovers and Joy Crisp of the Mars Science Laboratory

We once again go before a live audience for an all Mars rover show. We've also got singer KJ Williams, Bill Nye the Planetary Guy, and Emily Lakdawalla's proof that she is not covering up evidence of aliens in our solar system!

New Mexico Space Adventure: Back to the First International Planetary Caves Workshop

New Mexico Space Adventure: Back to the First International Planetary Caves Workshop

New Mexico Cave Adventure With Penny Boston and the First International Planetary Caves Workshop

New Mexico Cave Adventure With Penny Boston and the First International Planetary Caves Workshop

One Planet, Two Stars, With Laurance Doyle

Multidisciplinary scientist Laurance Doyle led the team that has announced discovery of the first extrasolar planet circling two stars. He also talks about his plan to analyze communication by and among other species.

An Optical SETI Update From Paul Horowitz

An Optical SETI Update From Paul Horowitz

LIFE Heads for Space Aboard Shuttle Endeavour

LIFE Heads for Space Aboard Shuttle Endeavour

Life's Building Blocks Found in an "Impossible" Meteorite

Life's Building Blocks Found in an Impossible

Rafael Navarro-Gonzalez and Chris McKay Say the Vikings Probably DID Discover Organics on Mars

Rafael Navarro-Gonzalez and Chris McKay Say the Vikings Probably DID Discover Organics on Mars

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