How UFO Sightings Became an American Obsession
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Unidentified flying object (UFO), History, Sightings, & Facts
The UFO reports interesting Nasa
Unidentified flying object - Wikipedia
It's time to stop UFO mania - The Washington Post
What is a UFO? The history of UFOs. - Deseret News
U.S. Navy Wants Pilots to Report UFOs, Despite Stigma - The Atlantic
Public's UFO obsession has experts, others sorting what's fact, what's fiction - ABC News
Unidentified flying object (UFO), History, Sightings, & Facts
In The Early 1950s, D.C. Was Obsessed With UFOs. Here's Why
Stephen Mihm: So what are UAPs? And can we trust the government to tell us if it knows?
Alien probe: Report details 25 years of UFO sightings in Canada
UFO' Review: Outer Space, the Inside Story - WSJ
Tic Tacs and time machines: a history of America's UFO obsession
Are we on the cusp of another UFO craze?, Community
U.F.O.s: Why the Truth Has Not Always Been Out There - The New York Times
