Presenting the full story of the CORONA spy satellites' origins, Eye in the Sky explores the Cold War technology and far-reaching effects of the satellites on foreign policy and national security. Arguing that satellite reconnaissance was key to shaping the course of the Cold War, the book documents breakthroughs in intelligence gathering and achievements in space technology that rival the landing on the moon.

DWAYNE DAY is senior program officer for the National Research Council/National Academy of Sciences. He is also a prolific and acclaimed space historian who served on a board investigating the space shuttle Columbia tragedy.