Record 008 · 17 December 1969
Project Blue Book termination
U.S. Air Force · United States
Ledger illustration of the record — not a scan of the original paper. — Night Ledger illustration of the file
In December 1969 the Secretary of the Air Force announced the end of Project Blue Book, citing the Condon Report and two decades of files. The public line was three points: no threat to national security, no sign of technology beyond present science, no evidence of extraterrestrial vehicles. The case files went to the National Archives.
Closure is itself a document. After 1969, American UFO paper did not stop — it moved into FOIA, Navy safety reports, and, decades later, the UAP tasking. Blue Book remains the largest single public military case file on the subject.
Public file: National Archives, Project Blue Book
