The Digital Research Library of Illinois History Journal™: Chicago O'Hare International Airport UFO sighting occurred on November 7, 2006.
Americans Skeptical of UFOs, but Say Government Knows More
Reports of rising UFO sightings are greatly exaggerated | Astronomy.com
The Unexplained Phenomena of the U.F.O. Report | The New Yorker
These 5 UFO Traits, Captured on Video by Navy Fighters, Defy Explanation - HISTORY
June Stargazing: UFOs on the Horizon | Sierra Club
Handbook of UFO Religions | Brill
On Halloween, NASA and intelligence agencies looking at UFOs seem to be gearing up to play them down
Pentagon receives more than 350 new reports of UFO sightings
Could These UFOs Be Aliens? Some See Official Denials as Hot Air. - WSJ
How UFO Reports Change With the Technology of the Times | History| Smithsonian Magazine
The Truth about Those "Alien Alloys" in The New York Times UFO Story - Scientific American
It's time to stop UFO mania - The Washington Post
2006 Chicago O'Hare UFO Incident - YouTube
O UFOs, Where Art Thou? - Scientific American
Unidentified flying object - Wikipedia
Pentagon Received 'Hundreds' of New UFO Reports
UFOs in America: A short history of aliens and sightings | CNN
UFO Report: No Sign Of Aliens, But 143 Mystery Objects Defy Explanation : NPR
The effects of UFO sightings on national security | ASU News
