What if an alien civilization did not just exist somewhere in the universe, but actually reached Earth in the distant past?

Harvard's Avi Loeb suggests interstellar object 3I/ATLAS might have scattered life-building materials, reviving panspermia ...

Harvard astronomer Avi Loeb suggests interstellar objects like 3I/ATLAS might be seeding life across the universe, proposing a bold mission to intercept and study these cosmic visitors.

If you’ve ever watched Starship Troopers and wondered about the genuinely alien-looking landscape, its location may surprise ...

To assess the plausibility of alien visitors, it’s necessary to understand the obstacles that an extraterrestrial vessel would need to overcome to reach Earth ...

In this edition, Opinion Editor Alex Olson examines Trump’s latest xenophobia. The webpage whitehouse.gov/aliens, operated by ...

The scientific wonderers at What If explore the provocative theory that extraterrestrial visitors may actually be humanity’s distant descendants traveling back through time. Trump breaks silence after ...

Half a century after "Close Encounters of the Third Kind," the director returns to the subject of UFOs with "Disclosure Day." ...

Artists and cultural figures celebrate the great Yorkshire painter who could ‘make teabags and toothpaste glamorous’ – with a poem from a fellow Yorkshireman ...

When 1986's Star Trek IV: The Voyage Home ended, it felt like the franchise had tied up just about everything. The humpback ...

“The U.F.O. topic in particular is a big challenge to any religious worldview,” said Jeffrey Kripal, a professor of religion ...

Does the CIA have its own Men in Black? Apparently, the government isn’t disclosing everything they know about UFOs. A whistleblower has accused the CIA of attempting to use people’s DNA to aid them ...