It starts with a signal. Faint, strange, and unlike anything humanity has ever recorded. Within hours, it escalates into an event that changes the course of history as an alien arrival on Earth ...

A man claiming to be a 'time traveller' from 2045 has sparked fresh debate online after asserting that alien contact in 2028 will reveal extraterrestrials are not from outer space, a claim he made ...

Here’s what you’ll learn when you read this story: Technosignatures are theoretical signs of technologically advanced alien civilizations, but so far, none of those civilizations have phoned home.