Interview clips from the latest International Astronomical Union meeting, which is expected to vote on the definition of a planet. http://www.nasa.gov/audience/formedia/audio/planets-20060816.html Patrick p.s. If anyone thinks the "Great Pluto Debate" here is intense, try signing up for the Minor Planet Mailing List. That list consists of professional and amateur astronomers and the discussion there is getting, shall we say, heated. :)