ET went home
BBC News: UFO study finds no sign of aliens.
A confidential Ministry of Defence report on Unidentified Flying Objects has concluded that there is no proof of alien life forms. In spite of the secrecy surrounding the UFO study, it seems citizens of planet Earth have little to worry about. The report, which was completed in 2000 and stamped "Secret: UK Eyes Only", has been made public for the first time. Only a small number of copies were produced and the identity of the man who wrote it has been protected. His findings were only made public thanks to the Freedom of Information Act, after a request by Sheffield Hallam University academic Dr David Clarke. The four-year study - entitled Unidentified Aerial Phenomena in the UK - tackles the long-running question by UFO-spotters: "Is anyone out there?" The answer, it seems, is "no".
There are plenty of UFOs (Unfinished Objects) floating around on knitblogs, but none by extra-terrestrials. Unless it's all a big cover-up.