48% of Americans believe that authorities are withholding knowledge about UFOs.
Americans who have been abducted by UFOs
According to UFO researchers, as many as 4.2 million Americans believe they have been abducted by UFOs. Assuming the same is true worldwide, more than 100 million people have taken a trip into space.
Americans’ belief in UFOs
9% of the American population believe that a UFO is hiding in the tail of comet Hale-Bopp, according to a 1996 US poll.