In the newly published government file, the U.S. airman said the UFO appeared impossible to miss.
"The blip was burning a hole in the radar with its incredible intensity," the pilot said. "It was similar to a blip I had received from B-52's and seemed to be a magnet of light. ... I had a lock on that had the proportions of a flying aircraft carrier."
As he closed in on the object to prepare for combat, however, the object began to move wildly before fading off his radar. The target gone, the mission was called off, and he returned to base to an odd reception.
"I had not the foggiest idea what had actually occurred, nor would anyone explain anything to me," the pilot said. He said he was led to a man in civilian clothes, who "advised me that this would be considered highly classified and that I should not discuss it with anybody not even my commander."
CSMonitor: How many civilizations are in our galaxy?
The answer is 361.