Are we alone in the Universe? With more than 100 billion galaxies in the observable universe and at least 500 billion planets ...

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

Thousands of people have reported UFOs or alien encounters in Northern California. That number could soon go up.

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

When it comes to the search for life elsewhere in the universe, methane and other chemical compounds are seen as signs of ...

That sharp, briny smell is not the salt, it is a gas made by life, breathed out by tiny ocean creatures too small to see. For ...

Scientists may have found the strongest hint yet that life could exist beyond Earth, and the focus is not Mars but a distant ...

A set of protocols telling scientists what to do – and what not to do – if they ever detect evidence of intelligent life ...

The “Wow!” signal is one of our best pieces of evidence for aliens, but researchers are building a compelling case for a more ...

The “Wow!” signal is one of our best pieces of evidence for aliens, but researchers are building a compelling case for a more ...

E.T. the Extra-Terrestrial was a global phenomenon that spawned many knockoffs, with films like Purple People Eater, Badi, ...

Stellar storms could be masking Alien radio messages.