Whether or not you believe in Earthly visitation by alien beings, it's undeniable that UFOs have, at the least, become an essential part of modern day folklore. And in a bevy of stories that have added on to that treasure trove of fantastic tales, there's one document that, according to Atlas Obscura, has become the most popular FBI file among UFO truthers. 

The document is just called "Guy Hottel," named after an agent in an FBI field office. It's publicly available on the FBI Vault website, among a handful of other UFO and related cases. In one page, it describes an incident relayed second or third hand of a three separate but related UFO crashes around 1950 in New Mexico, with three alien bodies described as having a "human shape" but only being three feet tall, clothed in a metallic fabric. "Each body was bandaged in a manner similar to the blackout suits used by speed fliers and test pilots," Hottel said. The craft itself was described as being 50 feet in diameter. 

The agency denies that it's related to Roswell, or that they even seriously investigated it. "Finally, the Hottel memo does not prove the existence of UFOs; it is simply a second- or third-hand claim that we never investigated," it says. "Some people believe the memo repeats a hoax that was circulating at that time, but the Bureau's files have no information to verify that theory."

To read more, click here.