Ask people what they think about UFOs, and you’re sure to get opinions ranging through all extremes and nuances. Some are so embarrassed by the topic that they simply refuse to consider any evidence whatsoever, like the Pope refusing to look through Galileo’s telescope. Others claim not only to be certain that aliens are here, but to have exact, insider knowledge of what it’s all about. Between these extremes are endless variations.

It’s the same with how we approach the subject. Some people read UFO books for fun, like a mystery novel or scary story. Others are more interested in scientific evidence, such as analysis of photographs, videos, or material samples. Still others prefer more hypothetical roads, like theories about the likelihood of life elsewhere in the universe, or how an advanced propulsion system might work. There are a host of specialized studies, too, ranging from abductions, to crop circles, to animal mutilations, and more. Or, you may focus on the believers and witnesses themselves by studying UFOs as an element of popular culture, or from a psycho-social perspective.

Another approach is historical. There are, after all, government UFO documents that anyone can read. What do they say? Can these documents tell us whether the government or military have ever been interested in this phenomenon? If so, why?

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