Ahead of Amazon’s adaptation of Project Hail Mary, the book’s author discusses alien life, US space exploration and dealing with loneliness ...

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.

The letter X can be a lot of things: rebellious, mysterious, religious. For this Word of the Week, we examine its origins and many uses.

Superhero films are among Hollywood's most critic-proof products. This analysis ranks 15 comic book movies that grossed over ...