Are we alone in the universe? Consider mysterious "extraterrestrial" radio signals . Unexplained gases on other planets. Things mistaken for UFOs ...

Scientists are calling for a lunar quarantine facility where samples from Mars, the Moon, and beyond would be examined before being brought to Earth. They warn that even a tiny alien microorganism ...

President Donald Trump made a jaw dropping jibe when he was allegedly briefed on alien “hybrids” living among humans.

One unexpected choice in the Alien franchise's best prequel breaks a big rule of spinoffs by shattering franchise continuity, ...

Advanced aliens, if they exist, may have no physical bodies at all and could be built from materials nothing like human flesh ...

This new group, which is led by Harvard professor Avi Loeb, aims to advise the Trump administration and the U.S. intelligence ...

The breakthrough could reveal previously hidden ancient human activity inside caves, acting as ‘genetic archives’ ...

Astronomers have recently started looking for black holes bigger than galaxies. Brian Lacki explains how these “stupendously ...

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