Even though it is half a century since news of flying saucers first made world headlines, we still await any fully recorded, widely observed landing by an alien spacecraft - an event that would surely be the definitive expression of extraterrestrial contact. Those who still look for such an event cover the widest range of our fellow beings - from scientists and journalists to followers of new religions and open skeptics. In this survey, the authors take us on a bizarre 50-year journey that reveals as much about the mysteries of human consciousness as it does about strange things seen in the skies. More and more, the very fabric of ufology seems to be woven from a meeting between the human mind and the mysteries of the cosmos.