by Charlene Anderson A Planetary Society trifecta — that’s what Neil Tyson calls this episode of his StarTalk radio show broadcast this week. His guests include the Society’s Vice President, Heidi Hammel, and its Executive Director, Bill Nye, (along with the Society’s friend, Steve Squyres, Principal Investigator for the Mars Exploration Rovers.) And, of course, Neil himself serves on the Society’s Board of Directors. Check it out >> The ….
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