An Illustrated History of UFOsMysterious lights in the sky. Alien abductions. Government cover ups. Dedicated ufologists have spent years documenting unexplained phenomena from flying saucers to extraterrestrial life. Uncover the history of UFOs in this illustrated guide, which separates the science fiction from the facts. The mysterious history of flying saucers is explored in depth, from potential alien visitors as far back as Stonehenge to UFO cults and the secrets of Area 51.