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30th Anniversary of The Planetary Society
  

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PROTESTING THE IAU PLANET DEFINITION AND A SMART-1 LUNAR IMPACT RECAP
September 11, 2006
Guests: Mark Sykes, Detlef Koschny
Select Format: MP3    Windows Media   

We have a busy show -- Mark Sykes, Director of the Planetary Science Institute, talks about his petition to the International Astronomical Union protesting its planet definition. And we look back a...  more »