In an article headlined " 'Aliens exist' say real-life X-Files, " the London tabloid The Sun said the memo appeared to back the claim that extraterrestrials landed in Roswell, New Mexico.

CNN: FBI's 'flying saucers' online memo intrigues public

Co-executive producers Alex Gansa and Howard Gordon are writing partners whose formative work included episodes of "Spenser: For Hire" (1987), "Beauty and the Beast" ('87-'90), and "The X-Files" ('93-'97).

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The site also lets you send a Loch Ness Monster e-mail postcard, buy a book on the legend and study the X-files-like Ness Files.

BBC: By Internet Correspondent Chris Nuttall