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

Former Pentagon UFO chief Jay Stratton recounts an insider's Roswell alien survivors claim, despite conflicting US Air Force ...

Former Pentagon UFO investigator Jay Stratton claims aliens were recovered alive from the infamous Roswell, New Mexico, crash ...

Pioneering computer scientist on why Trump is using ‘superintelligence’ wrong, whether AI could wipe out humanity – and how our biggest challenge will be accepting we’re not the only intelligent being ...

Humpback whales have been observed blowing bubble rings during friendly interactions with humans a behavior never before documented. This surprising display may be more than play; it could represent a ...

Claims that aliens are already here are everywhere, but proving them is another matter. The strongest cases become more ...

From the '80s horror film The Thing to the modern masterpiece Project Hail Mary, these are the greatest sci-fi movies that ...

Star Trek nearly stripped away the defining power of one of its best aliens, potentially changing the character for years to come.

Readers offer their explanations for the absence of hard evidence for extraterrestrial civilisations, in response to an article by Adam Kirsch When thinking about why we have not encountered ...

This is an edition of the Books Briefing, our editors’ weekly guide to the best in books. Sign up for it here. Oliva recommended six books in which the presence of aliens prompts readers to think more ...