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.

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

Answers to some of those questions could finally become public after President Trump's call last week for the release of ...

Shaped by a different biology or culture, other intelligent civilisations – if they’re out there – might understand the ...

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 ...

Retired U.S. Air Force Major General William Neil McCasland was last seen on February 27 in Albuquerque, New Mexico.

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

"Maybe the best hypothesis is that aliens beamed him up to the mothership," said the wife of Major General William Neil McCasland.

They had larger heads, larger eyes,” she said, describing one alien group. At the 24th annual Conscious Life Expo, which ...