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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Kindred Spirits: Alison Gibbings and Carolyn Shoemaker at the Planetary Defense Conference

Our special coverage of the PDC continues with two planetary scientists separated by almost 60 years in age, but with similar dedication and enthusiasm for saving the planet.