Term
Project Blue Book
The USAF's UFO investigation (1952-1969): 12,618 cases, 701 unexplained. Successor to Projects Sign and Grudge; closed on the Condon Report's recommendation.
The USAF's UFO investigation (1952-1969): 12,618 cases, 701 unexplained. Successor to Projects Sign and Grudge; closed on the Condon Report's recommendation.