A RESEARCHER is trying to unravel a Huntingdonshire UFO mystery that has just been uncovered after more than 30 years. It took place in November, 1976, in the skies above Huntingdon. A man, who gave his address as Norfolk Road, had been out walking his dog when he spotted an object in the sky. According to a letter, it was to be his 'close encounter'. UFO researcher John Hanson, 61, has uncovered the letter, which was sent to the Ministry of Defence, detailing the unidentified flying object experience.