Project Blue Book
Project Blue Book was the official U.S. Air Force program from 1952 to 1969 that systematically investigated UFO reports to determine if they were aircraft, natural phenomena, or misidentifications.
Project Blue Book was the official United States Air Force program established in 1952 to systematically investigate and analyze reports of UFOs (unidentified flying objects). Led initially by Captain Edward J. Ruppelt, it concluded in 1969 after investigating over 12,000 cases, concluding most were aircraft, natural phenomena, or misidentifications, though a small percentage remained unexplained.
What this means in real life
When a pilot reported seeing strange lights in the sky in 1957, the Air Force would file the report with Project Blue Book, which would investigate whether it was a classified aircraft, a natural phenomenon, or something unexplained—then document the findings.
What it isn’t
It was not a secret government cover-up of alien contact. While some claim it suppressed evidence, the program's actual conclusion was that UFO sightings had mundane explanations, and its records were eventually declassified and made public.
Commonly misused online
Social media often portrays it as a hidden government conspiracy to hide aliens, when in fact the program's official conclusion was that most UFO sightings were misidentifications of ordinary objects or natural phenomena.