A Timeline of the U.F.O.s That Were Shot Down - The New York Times

UFO Fever Is Taking Over Congress - The Atlantic

The Chinese balloon is the quintessential UFO - The Atlantic

UFOs: What we know about objects shot down over North America

Glowing Auras and 'Black Money': The Pentagon's Mysterious U.F.O.

Spy balloon witness thought it might have been a star or UFO

How Believers in the Paranormal Birthed the Pentagon's New Hunt

Why 'The New York Times,' 'The Washington Post,' and Politico Didn

Saucers Over Washington: the History of Project Blue Book – Pieces

UFO report: What a renewed interest in the search for UFOs says

Select timeline of UFO encounters

Questions linger on objects shot down by US planes