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- When is a planet not a planet? : the story of Pluto / by Scott, Elaine;
Includes bibliographical references (p. [41]), Internet addresses (p. [41]-42) and index.Explains how advancements in technology have changed our understanding of the universe, including why Pluto is no longer considered a planet.- Subjects: Astronomy;
- © c2007., Houghton Mifflin,
- Available copies: 1 / Total copies: 1
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