June. Nineteen sixty-nine, not one airliner but two, plus the pilot of an Air National Guard fighter plane, report being harassed by a team of UFOs.One man estimates the glowing ships have come within a few hundred feet. The pilot of the fighter plane even declares a near-collision.What were these UFOs really? It turned out they were fragments of a meteor coming apart in the upper atmosphere.Now here's the most interesting part: the meteor fragments were at least one hundred and twenty five miles from the planes.How could you possibly think something over a hundred miles away was about to hit you?Objects in the sky confuse our perceptual abilities. With no visual cues to help calculate distance, our brains rely on size and speed instead. How?