Project Blue Book was a study by the United States Air Force of 12,618 unidentified flying object reports.
The project shut down in December 1969, concluding most reports were misidentifications of natural phenomena, posing no threat to national security.
About 6% of the flying objects remained unidentified.
40 years later, an unclassifiable band took the name Project Blue Book, piloting grooves from other worlds.
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