CLASSIFIED FILES
Project Blue Book May Have Investigated and Downplayed UFO Incidents
Project Blue Book was a US Air Force program that investigated UFO reports from 1952 to 1969, following Project Sign and Project Grudge. The files are now stored at the National Archives and can be searched by date and location.
Đọc bằng tiếng Việt →Project Blue Book was a US Air Force program that investigated UFO reports from 1952 to 1969, following Project Sign and Project Grudge. The files are now stored at the National Archives and can be searched by date and location.
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