Secret History of UFOs

National Geographic Channel

12:00 AM to 1:00 AM

Sunday 28 April

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An investigation into reported sightings of unidentified flying objects across America, analysing whether they are anything more than figments of people's imagination. The US government examined more than 12,000 reported sightings as part of Project Blue Book, but after the inquiry's end in 1969 reports still continue to pour in