The authors are grateful to the many members of the Voyager Project team who not only made this historic mission of exploration possible but also took time from their busy schedules to offer us assistance, information, and encouragement in the preparation of this book. Among many too numerous to name individually, we particularly thank E. C. Stone, A. L. Lane, C. H. Stembridge, R. A. Mills, E. Montoya, M. A. Mitz, and B. A. Smith, L. Soderblom, and their colleagues on the Voyager Imaging Team. We are grateful to F. E. Bristow, D. L. Bane, L. J. Pieri and especially J. J. Van der Woude for their assistance in obtaining optimum versions of the photographs printed here. C. B. Pilcher and I. de Pater kindly made available their groundbased pictures of the Jovian magnetosphere. Many colleagues have read and provided helpful comments on parts of the manuscript, among them G. A. Briggs, S. A. Collins, S. Cruikshank, J. Doughty, A. L. Guin, A. L. Lane, R. A. Mills, E. Montoya, E. C. Stone, J. L. Ward, and especially C. R. Chapman. CONTENTS Foreword v Introduction vii Acknowledgment ix Chapter 1. The Jovian System 1 Chapter 2. Pioneers to Jupiter 11 Chapter 3. The Voyager Mission 23 Chapter 4. Science and Scientists 33 Chapter 5. The Voyage to Jupiter—Getting There 47 Chapter 6. The First Encounter 63 Chapter 7. The Second Encounter: More Surprises From the “Land” of the Giant 93 Chapter 8. Jupiter—King of the Planets 117 Chapter 9. Four New Worlds 139 Chapter 10. Return to Jupiter 169 Appendix A. Pictorial Maps of the Galilean Satellites 177 Appendix B. Voyager Science Teams 195 Appendix C. Voyager Management Team 197 Additional Reading 199 [Illustration: Jupiter is the largest planet in the solar system—a gaseous world as large as 1300 Earths, marked by alternating bands of colored clouds and a dazzling complexity of storm systems. The Voyager mission gave us our first close look at this spectacular planet. [P-21085]] CHAPTER 1 THE JOVIAN SYSTEM Introduction