Have aliens really descended upon British shores? In 2013, the UK declassified dozens of files outlining various UFO cases and how they were investigated.

The theme this week is proximity - whether an alien / UFO sighting from the Brazilian archives, NASA returning to the moon ...

Thirty years ago in a quiet municipality of southern Brazil, three girls came face to face with an alien-like creature that would haunt them for decades.

Spielberg's decades-long UFO fascination began with a 1957 desert meteor shower. Trace how one childhood moment shaped 'Close Encounters', 'E.T.', and beyond.

Captain Steve recently revealed the most 'disturbing' thing he's ever seen in the cockpit during his time as a pilot for American Airlines and shared whether or not he's spotted a UFO ...