The Harvard astrophysicist has devoted years—and thousands of interviews—to the idea that mysterious objects streaking ...

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

Our solar system is a celestial shooting gallery, chock-full of flying projectiles that one day could threaten Earth—so what ...

A rare visitor from another star system prompted SETI to hunt for alien technology, but the mysterious object appears to be a ...

God and aliens are having a moment. But what do Christianity and other faiths really teach about ETs?

As much as Steven Spielberg likes aliens, he seems to prefer holding them at arm’s length. The creatures in Close Encounters ...

Ad Astra ending explained with Roy’s final choice, Clifford’s fate, the Lima Project, the Surge, and what the movie’s ending ...

A look at 10 of the greatest alien sci-fi movies, from Ridley Scott's Alien to Denis Villeneuve's Arrival, none by Steven ...

Roger Ebert has championed plenty of sci-fi films, but he couldn't help but take down these sci-fi movies with some harsh ...

Given the unique importance of a potential UFO visit, confirmation requires a high standard of evidence. Here are simple tips ...

During the 1960s, the United States prepared to fend off nuclear missile attacks from the Soviet Union—unaware that the ...

These wildly different films explore the wondrous, and sometimes terrifying possibilities of contacting extra-terrestrial ...