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

A civilization capable of interstellar travel may also be one that has moved beyond conquest, excess and ecological ...

A deep dive into the iconic late-night block that shaped the tastes of a bleary-eyed, post-ironic generation of comedy fans.

Video widely shared online showed a woman angrily confronting a robot as it waved its metallic arms at her, while a crowd of ...

A search for missing retired Air Force Gen. William Neil McCasland has been hindered by an unseasonably warm spring in New Mexico, according to authorities. The vastness of the search area, as well as ...

Two NASA astronauts will conduct a long-delayed spacewalk today (March 18), and you can watch the action live. NASA astronauts Jessica Meir and Chris Williams will venture outside the International ...