The MoD last month made 15 of 18 remaining classified UFO investigation files public through the National Archives.
Most can only be viewed by visiting the National Archives in London, but details are starting to emerge after UFO investigators visited the records office.
The files include a detailed report on a UFO incident on October 19, 1982, at around 4pm local time.
A a USAF RC-135 plane, which was monitoring Soviet military activity as part of the Cold War, came across ‘a big object’ over the Eastern Mediterranean at around 35,000 feet.
Details of the file show that British RAF personnel at RAF Troodos, on Cyprus, listened in shock to the encounter unfold through the radio calls of the American crew.
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