Could ancient humans really have built the pyramids without extraterrestrial help? Or do such questions reveal more about modern anxieties than the past itself?

Debunking alien claims matters, but so does telling richer, more compelling stories about how humans shaped their own past.

Andy Weir discusses his science-fueled novel “Project Hail Mary,” which has been adapted into a film that opens in theaters ...

But not all sci-fi books are part of a series. There are a great number of standalone books that tell complete stories that are just as impressive as any series or franchise. Here are six such books, ...

Streetlights shaped like alien heads line the roads of Roswell, New Mexico, where murals of flying saucers streak across ...

Alien invasions are terrifying to think about, but cool to watch on TV. These are the 10 best shows you can watch about that unlikely occurrence, ranked.

Wright-Patterson has played a central role in the US military’s real investigations into mysterious objects in the sky — from Cold War-era research programs to efforts to study what the government now ...

Maj. Gen. William Neil McCasland, who retired from Wright-Patterson Air Force Base near Dayton, Ohio, is missing in New Mexico.

What would you do if you woke up on a spaceship light-years from Earth without knowing why you're there? Based on the New ...

Streetlights shaped like alien heads line the roads of Roswell, New Mexico, where murals of flying saucers streak across storefronts and tourists pose beside statues of little green men. Related video ...

Here's the latest from the New Mexico sheriff's office searching for retired U.S. Air General William Neil McCasland.