Que significa: UFO.

UFO is an acronym for Unidentified Flying Object. Any airborne vehicle or phenomenon that cannot be accounted for by qualified, experienced investigators using modern, accepted equipment and methods is classified as a UFO. Although UFO's are often attributed to extraterrestrial life or technology, no conclusive evidence of extraterrestrial origin has ever been made public. In fact, very little evidence even suggesting extraterrestrial involvement has ever been recovered, other than eye-witness accounts of unusual acceleration and maneuverability not possible by current human technology. Despite the lack of evidence, many people choose to attribute any unexplained celestial circumstance as the work of extraterrestrial intelligence.

Ah ya...

Espero sea de su maldito agrado.