#WorldUFODay: The most famous UFO sightings in the world
Have you ever looked up at the sky and seen something that struck you as strange?
Does extraterrestrial life exist? It's a mystery that intrigues us all. Despite huge advances in technological know-how, we are still no closer to proving that we are not alone, and there's no concrete evidence to suggest otherwise. But around the world, UFO sightings are reported with alarming regularity. So, should we believe in events like the notorious Roswell case, or dismiss outright the notion that we are being visited by beings from another planet?
Here is a list of the best-known cases of UFO sightings of recent times. Take a look and decide, is there something really out there?
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