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 ...

The grandfather paradox is just one of the thorny logical problems that arise with the concept of time travel. But one physicist says he has resolved them.

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 ...

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, ...

Physicist Lorenzo Gavassino redefines time travel theories, suggesting quantum mechanics and entropy may resolve paradoxes like the Grandfather Paradox, reshaping reality.

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

1. The path an object traces as it moves through the four dimensions of spacetime is called its X. When X forms a closed loop ...