Is it a bird? Is it a plane? A UFO maybe? Or is it some reflective Lichen? Where does the idea of an Unidentified Flying Object come from and are they real? Spoiler alert - probably not. In this episode Dallas is joined by journalist and author David Clarke to discuss all things unidentified. From the exact moment the term flying saucer was coined, to two befuddled policeman's interaction with some shiny rocks - where exactly did UFOs come from, and how have they become intertwined with modern day science?