When Is A Planet Not A Planet?
The Story of PlutoBook - 2007
On August 24, 2006, a group of astronomers made a big announcement: Pluto could no longer be considered a planet. This book explains 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.
Publisher: New York : Clarion Books, c2007
Branch Call Number: j 523.482 Sco83w
Characteristics: 43 p. : ill. (some col.) ; 26 cm