The trucker had been picking up a load at O'Hare International Airport when he spotted the creature.
An Arkansas teenager had been driving on Monday night when he came across a rather unnerving spectacle.
A new documentary airing tomorrow will feature footage captured by US Navy pilots of unidentified objects.
Oxford academic Dr Young-hae Chi claims that humanity has been having some very close encounters indeed.
Juliearna Kavanagh and her partner Warren Lewis had been driving near Ward when the incident occurred.
Visitors to the historic Cowick Barton in Exeter, England have long reported encounters with the unexplained.
The World War II-era vessel, which is now a museum, has seen more than its fair share of ghost sightings.
The iconic monument was featured prominently in the 1977 movie 'Close Encounters of the Third Kind'.
Yaphet Kotto, who starred in Ridley Scott's 1979 movie 'Alien', has had close encounters of his own.
More UFOs have been reported over California than any other US state, claims a new book on UFO encounters.
A woman had been out walking her dog when she came across Boston Dynamics' latest humanoid creation.
John Macdonald from Scotland managed to take an impressive picture of a strange, brightly lit object.
An airline passenger got the surprise of his life when he met someone who looked exactly like him.
A significant number of soldiers reported encounters with an ape-like creature in the jungles of Vietnam.
US military personnel reported several unusual incidents involving UFOs during the war in Vietnam.
Lloyd Canning has based his artwork on visions associated with his extraterrestrial encounters.
Members of a Scottish paranormal group came across the figure during an investigation in East Lothian.
Several astronauts have come forward over the years to talk about their experiences with UFOs.
Iran's combat aircraft pilots have had more than their fair share of close encounters over the years.
The UK Civil Aviation Authority has recorded several intriguing close encounters over the last decade.