The grandfather paradox is just one of the thorny logical problems that arise with the concept of time travel. But one ...

Tourists of time all know one rule: never change the past. Whether it's preventing your own conception or handing the blueprints to a time machine to a younger version of yourself, generating a ...

One of the most famous paradoxes ever, the grandfather paradox, cautions against making changes that could break the timeline if you were to ever travel back in time. But, according to one scientist, ...

The idea of time-travel paradoxes has been explored in science and the popular imagination alike, but some researchers think ...

Time travel could actually be possible with wormholes and other mechanics. Further, it could not only be possible, but the ability to create paradox-free time travel could also be completely ...

Time travel has fascinated humanity for generations, but it’s long been dismissed as impossible due to the “grandfather paradox.” This thought experiment poses a mind-bending question ...

Time travel is deterministic and locally free, a paper says—resolving an age-old paradox. This follows research observing that the present is not changed by a time-traveling qubit. It’s still not very ...

The Flash spun a lot of tales in its nine seasons on The CW, and in hindsight, some worked better than others. Many fans have mixed feelings about the arc of the Reverse Flash, a.k.a. Eobard Thawne — ...

Time travel is deterministic and locally free, a paper says—resolving an age-old paradox. This follows research observing that the present is not changed by a time-traveling qubit. It’s still ...