From The Black Vault Encyclopedia Project
A UFO or unidentified flying object is an object observed in the sky, exhibiting motility or impermanence, and not readily identifiable. Many people claim UFOs are extraterrestrial spacecraft but the majority of scientists say there is no definitive evidence to support that supposition.
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There are 6 subcategories to this category.
Pages in category "UFOs"
There are 88 pages in this category.