Project Blue Book (1952–1969): The U.S. Air Force’s Exhaustive UAP Investigation—12,618 Reports, 701 Unexplained, and Its Enduring Influence on Modern Disclosure
To the point
Project Blue Book systematically studied thousands of UFO reports with scientific methods under Major Edward J. Ruppelt and Dr. J. Allen Hynek, explained most cases while about 701 remained unresolved, ended after Edward Condon’s report, and its legacy still shapes modern UAP research and disclosure debates.
