Unidentified flying object (UFO), History, Sightings, & Facts

Unidentified flying object (UFO), any aerial object or optical phenomenon not readily identifiable to the observer. UFOs became a major subject of interest following the development of rocketry after World War II and were thought by some researchers to be intelligent extraterrestrial life visiting Earth.

It's time to stop UFO mania - The Washington Post

Reports of rising UFO sightings are greatly exaggerated

Analysis: Whistleblower testimonies did not change our basic understanding of UFOs

UFOs and UAPs National Archives

UFO Sightings: Where to Read the Pentagon's Declassified Info - CNET

What exactly are UFOs?, Articles

A whistleblower claims the US has alien vehicles. But where's the proof?, US news

Do Americans Believe in UFOs?

List of reported UFO sightings - Wikipedia

Garrett Graff on his urgent but fun new history book on UFOs - Los Angeles Times

UFO Sightings Chart, Description: Unidentified Flying Objec…

FBI — The FBI and UFOs

UFO report includes hundreds more sightings; 171 will require more analysis : NPR