Click on the shower, toilet, or bathtub. This brings up all available actions for the object. Select the “Ponder time travel” ...

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

many still believe time travel to the past will never be easily attainable. Don't believe anyone who tells you that humans will never have efficient technology for backward and forward time travel.

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.

In fact, if I was ever given the chance to travel to the past, it would only be to prevent myself from watching the best time travel movies and be able to experience them for the first time with a ...