In the last decade, the number of reports of alien spacecraft sightings has skyrocketed. However, the phenomenon of alien encounters is not new. Here, for the first time, two UFO experts, Kevin Randle and Russ Estes, cover the history of UFO sightings, from the ancient to the modern, using research from many different sources, including the Air Force and private UFO groups. Each of the more than one hundred entries is based on actual eyewitness accounts and...