Copyright © 2011 by Ray Jayawardhana

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Published by Princeton University Press, 41 William Street, Princeton, New Jersey 08540

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Cover art: Original design by David A. Gee. Galactic center image courtesy of NASA/JPL-Caltech/S. Stolovy (Spitzer Science Center/Caltech)

All Rights Reserved

First printing, 2011

Fourth printing, and first paperback printing, with a new afterword by the author, 2013

Library of Congress Control Number: 2010940350

Cloth ISBN 978-0-691-14254-8

Paperback ISBN 978-0-691-15807-5

British Library Cataloging-in-Publication Data is available

This book has been composed in Sabon and Avant Garde

Printed on acid-free paper ∞

Printed in the United States of America

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