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

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

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

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

Ahead of the film adaptation’s release, Weir talked to Popular Mechanics about creating accurate sci-fi tech, protagonist ...