Now - they've intrigued star gazers and conspiracy theorists for years, but are there really unidentified flying objects out there carrying extra terrestrials?
Today the Ministry of Defence released its last ever UFO files, and naturally our region figures highly in the number of sightings. They're now being investigated by a former West Yorkshire police officer.. Here's Victoria Whittam.
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Kevin Wilson was also given a suspended prison sentence
The former soldier, from Hull, spoke exclusively to Calendar after spending four years in an Indian prison