A hoax 'alien invasion' alert in Brazil caused panic and amusement, revealing vulnerabilities in emergency systems.

A Brazilian spiritualist's prediction of an alien invasion during the Scotland vs Brazil World Cup match in Miami went viral, sparking memes and disbelief on social media.

A Ukrainian drone attack on Moscow's oil refinery has triggered a wave of speculation online after videos appeared to show a ...

Given the unique importance of a potential UFO visit, confirmation requires a high standard of evidence. Here are simple tips ...

Astrophysicist Neil deGrasse Tyson speaks with CNN’s Dana Bash about "never-before-seen files" on UFOs released by the FBI and the Pentagon last week. "Given the testimonies we have heard delivered in ...

The Pentagon has released another batch of ‘UFO Files’ with footage of unknown objects in the sky—here are the most common alien theories, explained. This voice experience is generated by AI. Learn ...

Steven Spielberg’s latest UFO blockbuster is generating debate far beyond extraterrestrials and government secrets.

America's vast national parks have long been sold as places of beauty, solitude and adventure. But for some UFO researchers, they may also be something far darker. Fresh debate erupted this week after ...

Another batch of “UFO Files” have been dropped by the Pentagon, featuring previously classified documents, audio and footage of strange objects in the sky. The new release comes two weeks after the ...