Do UFOs and aliens exist? Many people claim they don't. Many others are convinced that not only do they exist, but that in order to avoid widespread panic, the U.S. government released several reports that intentionally covered up all existing proof. Exciting text, accompanied by spine-tingling full-color images and intriguing sidebars, discusses some of the sightings and abductions that have been reported from around the world since the late 1800s. Readers will discover just what people have claimed to witness and experience and what the experts have to say about these strange reports.