Page 1, COP
1982 Richard Megna / Fundamental Photographs
Page 25
Joel W. Rogers / Corbis
Page 42
imagebroker / Alamy
Page 68, CO1
Christopher Berkey / EPA / Newscom
Page 80
Kathryn Sidenstricker / Dreamstime.com
Page 84
Science and Society / SuperStock
Page 104
NASA / JPL / DLR
Page 143
Christopher Berkey / EPA / Newscom
Page 144, CO2
Image Science and Analysis Laboratory, NASA Johnson Space Center
Page 145
Scott Prokop / Shutterstock
Page 152
AP Photo / The Times, Michael Mancuso
Page 192
MIKE BLAKE / Reuters / Landov
Page 197, CO3
Cristian Baitg / iStockphoto
Page 201
AP Photo / Natacha Pisarenko
Page 225
Image Asset Management Ltd. / Alamy
Page 233
Santos06 / Dreamstime.com
Page 240
Archive Photos / Getty Images
Page 249
Randy Mckown / Dreamstime.com
Page 254, CO4
John Moore / Getty Images
Page 261
iStockphoto / Thinkstock
Page 266
Lebrecht Music and Arts Photo Library / Alamy
Page 300
Classic Image / Alamy
Page 326
Konstantin Sutyagin / Dreamstime.com
Page 342
John Moore / Getty Images
Page 343, CO5
AP Photo / Jeff Barnard
Page 353
INTERFOTO / Alamy
Page 384
iStockphoto / Thinkstock
Page 398
NASA / Rick Wetherington and Tony Gray
Page 403
AP Photo / Jeff Barnard
Page 404, CO6
Dominion Resources, Inc.
Page 439
Giuseppe Nogari / The Bridgeman Art Library Ltd. / Alamy
Page 445
John Collier / The Bridgeman Art Library Ltd. / Alamy
Page 450
Denis Kozlenko / iStockphoto
Page 471, CO7
Thinkstock
Page 537, CO8
Bryan Whitney / Photonica / Getty Images
Page 608
Kean Collection / Archive Photos / Getty Images
Page 613
Mary Evans Picture Library / Alamy
Page 634
Mary Evans Picture Library / Alamy
Page 636, CO9
bronstein / Alamy
Page 689
Stocktrek / Corbis
Page 694, CO10
Rex Features via AP Images
Page 757, CO11
David Birkbeck / Getty Images
Page 760
Science Photo Library / Alamy
Page 791
Susan Reed / Shutterstock
Page 794
NASA / JPL
Page 804
NASA Planetary Photojournal
Page 809, CO12
Chris Knorr / Design Pics Inc. / Alamy
Page 813
NASA
Page 813
Wellesenterprises / Dreamstime.com
Page 835
Science Source
Page 862, CO13
YinYang/Vetta/Getty Images
Page 892
UIG via Getty Images
Page 895
Thomas Perkins/Shutterstock
Page 903, CO14
NASA/JPL-Caltech/STScI/Institut d’Astrophysique Spatiale
Page 940
Cosmo Condina/age fotostock
Page 962
NASA / JPL-Caltech / UCLA / MPS / DLR / IDA / PSI
Page 963
INTERFOTO / Alamy
Page 973, CO15
Gene Rhoden / Alamy
Page 1038
Bettmann / CORBIS
Page 1046
INTERFOTO / Alamy
Page 1058, CO16
Paul Souders / Danita Delimont Photography / Newscom
Page 1082
North Wind Picture Archives / Alamy
Page 1085
Science and Society / SuperStock