The final tranche of UFO files released today include the reporting of a silver disc in the skies above Halifax.
The files, which contain 4,400 pages, cover the work carried out during the final two years of the MoD’s UFO desk from late 2007 to November 2009.
In January 2009 a man sitting in his lounge reported a silver disc shaped light seen for two minutes over Halifax.
More dramatic reports include: Someone claiming they had been living with an alien in Carlisle; a Cardiff man who claimed a UFO abducted his dog, car and tent; an MoD police officer sighting of a pear drop-shaped translucent green light from the Royal Navy base at Portsmouth.
The UFO desk received over 600 UFO sightings in 2009 - treble the amount the previous year.
And the files show that in more than 50 years no UFO sighting ever revealed anything to suggest an extra-terrestrial presence or military threat to the UK. This led to the decision to close the UFO Desk and the UFO hotline which were taking up increasing time and resources.
Dr David Clarke, author of the book “The UFO Files” said the surge in sightings could be due to a less sinister reason.
“Many of the sighting accounts - such as formations of orange lights moving slowly across the sky - describe the appearance of Chinese lanterns even though people did not recognise them at the time,”
But, Dr Clarke, said that wasn’t the only explanation and UFOs are very much a social phenomenon.