Time travel is deterministic and locally free, a paper says —resolving an age-old paradox. This follows research observing ...

Relativity means it is possible to travel into the future. We don't even need a time machine, exactly. We need to either travel at speeds close to the speed of light, or spend time in an intense ...

Popular media shows time travel with a DeLorean time machine, but in reality it would look a bit different. Here's the science behind it to know. Best tech deals 🛍️ $3,500 iPhone possible?

Will it ever be possible for time travel to occur? – Alana C., age 12, Queens, New York. Have you ever dreamed of traveling through time, like characters do in science fiction movies?

Is it possible to travel through time? The short answer is that you are, and you are doing it now as you speed into the future at an amazing pace of one second per second.

In the movies, time travelers typically step inside a machine and—poof—disappear. They then reappear instantaneously among cowboys, knights or dinosaurs. What these films show is basically ...

If time travel were possible into the past, so the thinking goes, then a person could go back in time and kill their own grandparents, thus making it impossible for them to be born and impossible ...

While time travel is fundamental to Doctor Who, the show never tries to ground the Tardis' abilities in anything resembling real-world physics.