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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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Jim Irwin with Apollo 15's Lunar Roving Vehicle

Planetary Radio

Andy Chaikin on Apollo 15 and the lessons of Apollo

Space historian and author of A Man on the Moon Andy Chaikin returns as we celebrate Apollo 15’s 50th anniversary.

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