AceShowbiz - If Muhammad Ali's experiences didn't make him a believer in aliens, then there's no other way one can be convinced of extraterrestrial life. The late boxing legend claimed he saw no less than sixteen UFOs throughout his lifetime. "I happened to look up just before dawn, as I often do while running, and there hovering above us was this brilliant light hanging as if by an invisible thread," he recalled the time he saw two UFOs outside New York City. "At first I thought it was a beacon projected from a helicopter. But moments later a similar object passed in front of us."

Ali's closest UFO encounter "happened when a cigar-shaped ship hovered over a car I was a passenger in one night, driving north on the New Jersey turnpike," he detailed his experience in the 2015 book "Amazing Flying Saucer Experiences of Celebrities". "What a sight that was. We could see the shadow made by the UFO as it passed over the pavement of the road in the light of the full moon."