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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.

Igniting Discovery poster

Igniting Discovery: A showcase of NASA-funded research

For the first time, the Planetary Society's annual Day of Action was followed by Igniting Discovery, a showcase of the NASA-funded science we're fighting to protect, held in the U.S. Senate building.