UFO believers got one thing right. Here's what they get wrong.

The Pentagon had a program to investigate UFOs, but it found no good evidence for aliens. What would prove the presence of extraterrestrials?
This is additional taxonomy that helps us with analytics

Why alien abductions are down dramatically - The Boston Globe

Are Aliens Real?: How UFO Culture Took Over America

Roswell incident - Wikipedia

UFO' Review: Outer Space, the Inside Story - WSJ

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

Is the Government Concealing UFO Craft and Dead Extraterrestrials?, BU Today

Pentagon's release of UFO videos a big deal for believers in extraterrestrial life: former U.K. investigator

Starseeds: psychologists on why some people think they're aliens living on Earth

How UFO Sightings Went From Conspiracy Theory To A Serious Government Inquiry : NPR

[Graff, Garrett M.] on . *FREE* shipping on qualifying offers. UFO: The Inside Story of the US Government's Search for Alien Life

UFO: The Inside Story of the US Government's Search for Alien Life Here―and Out There

Project Blue Book' Is Based on a True U.F.O. Story. Here It Is. - The New York Times

10 places to see a UFO around the world – Lonely Planet - Lonely Planet

NASA Learns the Ugly Truth About UFOs - The Atlantic

How UFO Sightings Went From Conspiracy Theory To A Serious Government Inquiry : NPR

Encounters' review: Netflix UFO series won't sway any skeptics - Chicago Sun-Times