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.
More top news
According to a travel website, the seaside town ranks ninth, alongside the likes of Damascus in Syria as well as Pyongyang in North Korea.
Emma Jesson has the details.
Operation Shimmer is targeting the minority of cyclists in the city who cause a danger to themselves and others by cycling without lights.