Source Documents

Browse 5 documents (284 MB) of primary records. Search full text or filter by status, release, original source, produced year, and scope.

Project Blue Book Documents

Documents related to Project Blue Book, the U.S. Air Force program (1952-1969) that investigated reports of unidentified flying objects (UFOs).

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These files are archival copies of records published by the U.S. Department of War. Content is reproduced as released.