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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Space Policy Edition: Real and Acceptable Reasons for Space Exploration

Former NASA Administrator Mike Griffin discusses his claim that there is a tension between the so-called Real reasons that motivate spaceflight and the prosaic, Acceptable reasons used to justify space exploration within the public sphere.

Phoenix on Ice: One Week in the Martian Arctic Circle

Phoenix on Ice: One Week in the Martian Arctic Circle

NASA Administrator Michael Griffin, and Your Ticket to Space

NASA Administrator Michael Griffin, and Your Ticket to Space