Alien Mug Shots: The Ten Best (or Worst) Photos of Aliens

"Photos of supposed UFOs abound. Most of the time they show dark stains or bright dots in the sky, of varying dimension and quality, which could be due to a lot of things: military aircrafts, weather balloons, birds, meteors, etc. Sometimes the UFO is well focused, but the flying saucer always looks suspiciously similar to a pan lid suspended from a thread or a lamp holder or a wheel cap thrown in the air. And of course today the possibilities for digitally retouching an image are endless."