Category:Project Blue Book: Difference between revisions

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This category contains all officially recorded cases from the United States Air Force's Project Blue Book (1947–1969), the systematic investigation of unidentified flying objects (UFOs). The cases listed here are those officially classified as "Unknown" — sightings for which no conventional explanation was determined after investigation.

Project Blue Book investigated a total of 12,618 reported sightings. Of these, 701 were officially listed as "Unknowns" upon the project's termination on December 17, 1969. The records are held by the National Archives and Records Administration (NARA) as microfilm publication T-1206.

See also

Pages in category "Project Blue Book"

The following 200 pages are in this category, out of 601 total.

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