archive_org · gov / mil cred 4

Project Blue Book

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Project Blue Book was one of a series of systematic studies of unidentified flying objects (UFOs) conducted by the United States Air Force. It started in 1952, and it was the third study of its kind (the first two were projects Sign (1947) and Grudge (1949)). A termination order was given for the study in December 1969, and all activity under its auspices ceased in January 1970. Project Blue Book's goals were t o determine if UFOs were a threat to national security, and to scientifically analyze UFO-related data. By the time Project Blue Book ended, it had collected 12,618 UFO reports

Tags

agency: US Air Force

evidence: Document

program: Project Blue Book

source: Public Archive Social Media

Metadata (14)

Source	archive_org
Source tier	1 (gov / mil)
Credibility	tier 4 / 5
Kind	document
MIME	image/jpeg
Size	0.09 MB
Language	en
First seen	2026-05-10 08:52
Last seen	2026-05-10 13:30
Source URL	https://archive.org/details/project-blue-book
Direct URL	https://archive.org/download/project-blue-book/NSIA-logo.jpg
· mediatype	collection
· subject	UFO, UFOs, Unidentified Flying Object, Unidentified Flying Objects, Blue book, Project Blue Book, Air Force, US Air Force
· query	title:"project blue book"

Permalink: /item/01KR8HDKWJP8V4QA0RSD8NNVK1.html

archive_org · gov / mil cred 4 35

Project Blue Book - 1940s Case Files - 505 cases

2015-01-01

archive_org · gov / mil cred 4 31

Project Blue Book : the top secret UFO findings revealed

vii, 423 pages, 32 unnumbered pages of plates : 18 cm Includes bibliographical references

1990-01-01

archive_org · gov / mil cred 4 33

Project BLUE BOOK (roll 1)

Roll 1 (microfilm) Case Files of Individual Sightings, Index, and File Nos. 1-54 , summer 1947-July 9, 1947, Project Blue Book . Released by U.S.National Archives and Records Administration (NARA), 1976. RG (Record Group) 341.

1976-01-01