The ability to jump forward and backwards in time has long fascinated science fiction writers and physicists alike. So is it really possible to travel into the past and the future?

Few ideas in modern science have reshaped our understanding of reality more profoundly than space-time—the interwoven fabric ...

Paradoxes may well make time travel impossible, but an unbreachable physical obstacle is yet to be found.

Traveling forward through time is inevitable, but is there any way to control it?

To mark the 40th anniversary of Back to the Future, NPR looks at what it takes to get time travel right on the big screen ...

The ability to jump forward and backwards in time has long fascinated science fiction writers and physicists alike. So is it really possible to travel into the past and the future?