Hollywood makes initiating alien contact seem much easier than it has proven to be. In E.T. the Extraterrestrial, E.T. got ...

Why do we tend to assume that UFOs are crafts carrying alien beings rather than alien beings themselves? How the UFO ...

Former Pentagon UFO investigator Luis Elizondo claims the US government possesses unreleased photographs showing what appear ...

Scientists have identified new clues that could help astronomers spot one of the most famous hypothetical alien ...

A Soviet astronomer in the 1960s proposed a scale to classify hypothetical alien civilizations. Here’s why the framework is ...

Get the latest federal technology news delivered to your inbox. You might think this column is about UFOs and the Pentagon's ...

After a two week expedition off the coast of Brazil, an international team of researchers discovered 31 new marine species, ...

Scientists suggest that advanced aliens might not have physical bodies, challenging traditional views of extraterrestrial ...

Somewhere out there, a planet roughly the size of Earth may be orbiting a distant star in conditions that could support life.

Instead of searching the skies for radio signals, scientists suggest the first evidence of an extinct alien civilisation could be buried in lunar soil.

With the release of "Disclosure Day," Steven Spielberg's new film about aliens, a question as old as science fiction itself resurfaces: If aliens were to arrive on Earth, would they come to conquer us ...

The best way to find alien technosignatures is to look for ones that have long survived their creators, according to a new ...