Area 51 | Description, History, Location, & Facts | Britannica
Mexico Air Force video creates UFO stir - ABC News
UFOs: Natural Explanations – Pieces of History
Pentagon declassifies UFO videos taken by Navy pilots
US Congress To Hold First Public Hearing On UFOs in 50 Years. Here's Why
UFO Sighting Photos: 10 Unexplained Pictures From History | Time
Public Interest in UFOs Persists 50 Years After Project Blue Book Termination | National Archives
U.S. Navy says it's tracking UFOs - The San Diego Union-Tribune
Letters to the Air Force on UFOs" by Bill Adler
UFO Report: No Sign Of Aliens, But 143 Mystery Objects Defy Explanation : NPR
Pentagon now reports about 400 UFO encounters: 'We want to know what's out there' - ABC News
Pentagon releases videos of encounters between UFOs and Navy pilots
Pentagon officials testify at first public UFO hearing in more than 50 years - CBS News
Avro Canada VZ-9 Avrocar - Wikipedia
The Pentagon Released U.F.O. Videos. Don't Hold Your Breath for a Breakthrough. - The New York Times
Declassified document shows 'real' flying saucer > Air Force > Article Display
These 5 UFO Traits, Captured on Video by Navy Fighters, Defy Explanation - HISTORY
Brazil air force to record UFO sightings - BBC News
Ford Press Releases - UFO, 1966
UFOs in America: A short history of aliens and sightings | CNN
The Unexplained Phenomena of the U.F.O. Report | The New Yorker
Unidentified flying object | History, Sightings, & Facts | Britannica
On Halloween, NASA and intelligence agencies looking at UFOs seem to be gearing up to play them down
Former Air Force Pilot Breaks Down UFO Footage | WIRED - YouTube
