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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Gamma Ray Bursts: Explaining the Universe's Biggest Bangs

Swift satellite principal investigator Neil Gehrels on what causes the universe's biggest explosions. Q&A on the rings of Saturn, and a new space trivia contest during our What's Up segment about the night sky and more.

Going Up! Ben Shelef of the Spaceward Foundation on Space Elevator Development

The Spaceward Foundation is about to host the first Space Elevator Games. Founder Ben Shelef talks about this and other projects. Q&A on where to look for life in our solar system and a new What's Up space trivia quiz.

NASA's Chief Scientist on the Vision for Space Exploration

NASA's Jim Garvin comments on the agency's just announced plans for human exploration and new spacecraft. Also Lou Friedman, Q&A on craters throughout the solar system, and Bruce Betts with a new What's Up contest.

Japanese Hayabusa Probe Reaches Asteroid

Project Manger Junichiro Kawaguchi celebrates the arrival at asteroid Itokawa, with further insights provided by former JPL Director Bruce Murray. Q&A on ice volcanoes, and a new trivia contest on What's Up.

The Mars Reconnaissance Orbiter's Project Manager and Project Scientist

MRO Project Manager Jim Graf and Project Scientist Rich Zurek introduce us to their powerful new spacecraft. Running out of big Near Earth Objects on Q&A, and we get Lost In Space

The Pioneer Anomaly: A Mystery in Deep Space

The Pioneer Anomaly: A Mystery in Deep Space

Amateur Astronomy: Do It Yourself Space Exploration

Amateur Astronomy: Do It Yourself Space Exploration

A Tour of the Solar System With Bill Hartmann

A Tour of the Solar System With Bill Hartmann

Mike Brown, Discoverer of 2003 UB313...Planet 10?

Mike Brown, Discoverer of 2003 UB313...Planet 10?

Author and Four-Time Shuttle Astronaut Tom Jones

Author and Four-Time Shuttle Astronaut Tom Jones

A Year of Saturn Discoveries From Cassini

A Year of Saturn Discoveries From Cassini

NASA Goes for Star Trek Science: Bob Cassanova of the Institute for Advanced Concepts

NASA Goes for Star Trek Science: Bob Cassanova of the Institute for Advanced Concepts

Deep Impact Begins to Reveal Comet Secrets

Deep Impact Begins to Reveal Comet Secrets

Space Shuttle Flight Director Talks About Return to Flight

Space Shuttle Flight Director Talks About Return to Flight

Deep Impact Special

Deep Impact Special

Cosmos 1: Solar Sail Special Report

Cosmos 1: Solar Sail Special Report

Solar Sail Countdown

Solar Sail Countdown

Move Over Hubble: The Spitzer Space Telescope

Move Over Hubble: The Spitzer Space Telescope

The Threat of Military Space Debris

The Threat of Military Space Debris

Saving Voyager

Saving Voyager

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