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“Exploration is in our nature.” - Carl Sagan

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

Solar Sail Countdown

Solar Sail Countdown

Sally Ride Head Shot

Planetary Radio

A Conversation with Sally Ride

A Conversation with Sally Ride

Ray Bradbury, 1920-2012 head shot

Planetary Radio

A Martian Birthday Party for Ray Bradbury

A Martian Birthday Party for Ray Bradbury

Arthur C. Clarke - thumbnail

Planetary Radio

A Visit With Sir Arthur C. Clarke

A Visit With Sir Arthur C. Clarke

Planetary Radio

Cool Science: Ice on Europa and Mars

Cool Science: Ice on Europa and Mars

Solar system montage with eight planets

Planetary Radio

Interview with Louis Friedman

Interview with Louis Friedman

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