Time travel has shifted from pure fantasy to a serious, if highly constrained, topic in modern physics. The equations that ...

Time travel has long lived in the realm of fantasy, but a growing body of research is quietly shifting it into a serious ...

Predestination doesn’t waste time trying to explain the time travel technology, and it doesn’t need to, because it’s so coherent and straightforward, you naturally see that it makes sense right away.

This month marks 40 years since Michael J. Fox, as Marty McFly, jumped into a souped-up DeLorean and went back in time, putting his very future existence at risk. (SOUNDBITE OF FILM, "BACK TO THE ...

A new study suggests that recalling the context in which a memory was made can help to restore the memory after it has started to erode. When you purchase through links on our site, we may earn an ...