Why isn't Pluto a planet?
By: by Michael Portman
Edition: 1st ed.
Series: Space mysteries
Publisher: Gareth Stevens Pub.
Published: 2013
Place of publication: New York, NY
Language: eng
Number of pages: 32
ISBN-13: 9781433982828; 9781433982835
Subjects: Juvenile literature; Planets
Description: "For many years, it was accepted as fact that our solar system had nine planets. However, one important meeting of astronomers in 2006 reduced that number to eight. They decided that Pluto was not a planet, a declaration that outraged some people. Readers will learn more about distant Pluto, such as how it was accidentally discovered. Brilliant photographs accompany the fascinating facts"--Provided by publisher.
Notes: Includes bibliographical references (p. 31) and index.
Table of contents: title: Nine minus one; title: Planet X; title: Ice world; title: Measuring Pluto; title: Tiny world; title: That's odd; title: The misfit; title: Where did Pluto go?; title: Pluto's neighborhood; title: Big discovery; title: Time to vote; title: The dwarf planets; title: New Horizons.