How UFO Reports Change With the Technology of the Times, History

Fears of Zeppelins, rockets and drones have replaced the "celestial wonders" of ancient times

More Human than Alien: Researching the History of UFOs, Perspectives on History

Will NASA's UFO Panel Reveal Any Extraterrestrial Secrets?

Pilot Shares Videos Of Strange UFO Sightings In Skies Over The US

TOP 5 UFO SIGHTINGS The Proof is Out There

UFOs: Generals, Pilots, and Government Officials Go on the Record: 9780307717085: Leslie Kean, John Podesta: Books

Glowing Auras and 'Black Money': The Pentagon's Mysterious U.F.O. Program - The New York Times

Whistleblower testifies U.S. salvaged 'non-human biologics' from UFO crash sites : NPR

Chart: UFO Report: The Pentagon Failed To Explain 143 Sightings

America's Long, Strange History of UFO Whistleblowers - The Atlantic