For generations, humans have imagined what it would be like to discover life beyond Earth. Would alien beings look anything ...

Sagan's team created the greatest puzzle of all time, which you can only solve if your species understands the basic nature ...

The latest tranche of declassified “UAP” files don't reveal much.

Add Yahoo as a preferred source to see more of our stories on Google. An illustration of an exoplanet in an alien star system. New research suggests that radio emissions from intelligent aliens may be ...

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

Professor Carol Oliver suggests that time dilation, a cosmic phenomenon, may deter aliens from visiting Earth, as ...

Scientists suggest that advanced aliens might not have physical bodies, challenging traditional views of extraterrestrial life. This theory questions our assumptions about consciousness and its ...

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, ...

Astronomers find planet that is shockingly like Earth in huge milestone for search for aliens - First ever discovery of its ...

In the 21st century, the theories regarding the existence of aliens refuse to dial down. Now, the recently resurfaced NASA photo of Martian planet has gone viral on various social media ...

This voice experience is generated by AI. Learn more. This voice experience is generated by AI. Learn more. (Photo by ABC Photo Archives/Disney General Entertainment Content via Getty Images) ...