Donald Trump's declassified UFO files and the documentary Sleeping Dog reignite the debate on extraterrestrial life, yet officials maintain no evidence confirms alien existence.

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 ...

Given the unique importance of a potential UFO visit, confirmation requires a high standard of evidence. Here are simple tips for your inevitable close encounters with UFO claims.

Steven Spielberg says decades of UFO reports and eyewitness accounts convinced him to believe the believers while promoting ...