When Is a Planet Not a Planet?

  • by Pete Larkin, Elaine Scott
  • Narrated by uncredited
  • 0 hrs and 43 mins
  • Unabridged Audiobook

Publisher's Summary

Q: When is a planet not a planet?Scientists have argued for years over the answer to this question. And central to their debate has been Pluto, the tiny orb circling the Sun at the outermost reaches of our solar system. On August 24, 2006, a group of astronomers made a big announcement: Pluto could no longer be considered a planet.This fascinating and breathtaking audiobook explains in simple terms how advancements in technology have changed our understanding of the universe - and exactly how and why the number of planets in our solar system went from nine to eight.


What the Critics Say

"Through engaging and child-friendly language, Scott discusses the history... behind the discovery of the nine planets....A great resource." (School Library Journal)


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Book Details

  • Release Date: 01-08-2008
  • Publisher: Listening Library