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The document defines a UFO as an Unidentified Flying Object, a term created by the USAF in 1953. While some scientists believe that intelligent alien life may exist elsewhere in the galaxy, most say there is not enough evidence to confirm their existence or that aliens have visited Earth. Common explanations for UFO sightings include astronomical objects, aircraft, and balloons like weather balloons and research balloons. The document also notes that if an alien 65 million light years from Earth observed our planet with a powerful telescope, they would see dinosaurs, seeing Earth's past due to the long travel time of light.








