Official UFO files released - the British X Files!
The documents, which can be downloaded from the National Archives website, cover the period from 1978 to 1987.
They include accounts of strange lights in the sky and unexplained objects being spotted by the public, armed forces and police officers.
One man explained in great detail his "physical and psychic contact" with green aliens since he was a child.
The writer said that one of them, called Algar, was killed in 1981 by another race of beings as he was about to make contact with the UK government.
UFO file pictures
UK Government UFO files for download