Project Blue Book
Unidentified flying objects, sightings and encounters
Sightings and encounters
United States. Air Force
Unidentified flying objects
États-Unis
United States
While the United States Air Force was offering the American people pat denials that UFOs were "serious business," it was conducting intensive, highly secret inquiries into all UFO reports. These inquiries were carried out by responsible Air Force personnel and respected civilian scientists. Wh…
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