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“Exploration is in our nature.” - Carl Sagan

Planetary Radio Episodes

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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Planetary Radio

Voyager 1 at the Edge of the Solar System, With Ed Stone

Voyager 1 at the Edge of the Solar System, With Ed Stone

Ann Druyan portrait head shot

Planetary Radio

Ann Druyan on New Honors for Carl Sagan

Longtime partner Ann Druyan is proud of NASA's new Carl Sagan Fellowships. Bill Nye has a tribute for his old professor.

Planetary Radio

Cosmos 1: Solar Sail Special Report

Cosmos 1: Solar Sail Special Report

Sally Ride Head Shot

Planetary Radio

A Conversation with Sally Ride

A Conversation with Sally Ride

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