Time travel has long been one of the most irresistible concepts in science fiction — the idea that we could undo past mistakes, witness history firsthand, or peek into the future has fueled some of ...

From utopian dreams to dystopian warnings, time travel fiction reflects our hopes and fears for humanity’s future. Courtesy the publishers For decades, authors and readers have been asking questions ...

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 ...

Time travel is one of the hallmarks of science fiction, but many time-travel-based movies have plots that leave one with a headache just thinking about them. What if you could travel into the past, ...