A top-secret stash of UFO files has allegedly been uncovered following the death of a senior cybersecurity official at Los Alamos National Laboratory.

Donald Trump hints at releasing classified UFO files, reigniting public curiosity and speculation about what the government knows about extraterrestrial encounters.

A top U.S. Air Force general linked to the military's alleged research on UFOs has gone missing – and experts are calling his mysterious disappearance a "grave national security crisis," RadarOnline.com can reveal.

Questions about what the federal government may know about extraterrestrial life in the cosmos — or possibly even here on Earth — have inspired imaginations, conspiracy theories, sci-fi literature and blockbuster films. Answers to some of those ...

A reported cache of secret UFO research discovered at Los Alamos National Laboratory is at the centre of a new documentary, raising fresh questions about decades of covert government study.

Matt Gaetz claimed a secret US program is creating alien-human hybrids, citing an unverified military whistleblower briefing. Australian Senator Ralph Babet backed the claims, saying details are classified and suggesting aliens are already present.

(CBS) — Questions about what the federal government may know about extraterrestrial life in the cosmos — or possibly even here on Earth — have inspired imaginations, conspiracy theories, sci-fi literature and blockbuster films. Answers to some of ...