From the birth of modern rocketry to the cold war spy planes and the most advanced spy satellites, this book covers every aspect of the genesis and evolution of space-based surveillance systems. With incredible detail and historic photographs, travel through history to learn how the spy satellites led to today's technological revolution. Read about the early SAMOS and CORONA film-return spy satellites that led to the evolution of the digital KH-11 system. Astonishing technical details of all of the NRO surveillance systems and the evolution of missile guidance systems.