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Astronomy
This collection of images is of
Jupiter, Io (one of its moons),
Mars, and the Andromeda
Galaxy. The Andromeda
Galaxy is the most distant
object visible to the human
eye. At a distance of mil-
lion light years, it appears as a
fuzzy patch of light in the
night sky.
Copyright © 2005 by The McGraw-panies, rights as permitted under
the United States Copyright Act,no part of this publication may be reproduced or distributed in any
form or by any means,or stored in a database or retrieval system,without prior written permission
of the publisher.
The National Geographic features were designed and developed by the National Geographic Society’s
Education © National Geographic name “National Geographic Society”
and the Yellow Border Rectangle are trademarks of the Society,and their use,without prior written
permission,is strictly prohibited.
The “Science and Society”and the “Science and History”features that appear in this book were
designed and developed by TIME School Publishing,a division of TIME and the red
border are trademarks of Time rights reserved.
Send all inquiries to:
Glencoe/McGraw-Hill
8787 Orion Place
Columbus,OH 43240-4027
ISBN:0-07-861761-8
Printed in the United States of America.
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Authors
Ralph M. Feather Jr., PhD Dinah Zike
Science Department Chair Educational Consultant
Education Division Derry Area School District Dinah-Might Activities, Inc.
Washington, . Derry, PA San Antonio, TX
Series Consultants