Could ancient humans really have built the pyramids without extraterrestrial help? Or do such questions reveal more about ...

A strange purple object aboard the ISS sparked alien fears online, but NASA revealed it was a potato experiment. It shows how ...

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

As the science fiction author publishes the latest novel in his Children of Time series, Children of Strife, he talks to ...

A strange, tentacled object that went viral online was revealed to be a space-grown purple potato. Astronaut Don Pettit ...

Like the lead character of “Project Hail Mary,” some scientists are proposing ways that life might exist beyond a star’s ...

The Marvel Universe wouldn't be as large and expansive without the alien worlds that populate it. All sorts of alien races exist, from the humanoid to incomprehensible creatures. Originally introduced ...

The current decade has been huge for sci-fi fans. We're only partway through, but here are our top picks for the best sci-fi TV shows of the 2020s so far.

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