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UFO and aliens have long been a debate of topic. There are reported sightings and even abductions from different parts of the world. Some were considered hoaxes, while others were left unexplained until today. There are rumors that government agencies try to cover things up by hiding or eliminating the evidences that we are not alone in the universe. If you don’t believe in these things, the craziest UFO sightings would have you thinking or you may end up believing that they do exist. Check out the list we prepared below and prepare to be amazed.