Time travel movies often make for the most mind-numbing sci-fi films with paradoxes aplenty. But it’s those confusing temporal gymnastics that make them so fun. We’ve rounded up our favorites, from ...

Simple and reachable is how Primer portrays its time travel technology. With boxes built in a garage – made out of palladium from salvaged parts and copper tubing from refrigerators – Aaron (Carruth ...

Time travel has long lived in the realm of fantasy, but a growing body of research is quietly shifting it into a serious scientific conversation. Instead of DeLorean-style leaps into the past, ...

Thirty years ago, the world of travel was a far simpler place. There were no online travel agents; there was no seat-back inflight entertainment or in-car GPS. Mobile phones were brick-like, and could ...

Nuclear propulsion and power technologies could unlock new frontiers in missions to the moon, Mars, and beyond. NASA has reached an important milestone advancing nuclear propulsion that could benefit ...

If you’ve ever watched Christopher Nolan’s Tenet, you know how mind-bending and headache-inducing sci-fi feels. Nolan’s spectacle meets WTF to bring this complicated film to life in an experience you ...