Dubbing these “closed timelike geodesics” (CTGs), Ralph and Sajeendran explain in the paper: “Such a CTG would be ideal for ...

Meanwhile, your entire existence (and the existence of any object) can be plotted on what’s called a world line, a curving ...

Before you hop in a DeLorean or fire up a wormhole, let’s get something straight: Time travel already exists — in small, surprising ways. Thanks to Albert Einstein, we know that time isn’t a rigid ...

STATEN ISLAND, N.Y. — Imaginative minds have long pondered the possibility of time travel, but is it all just wishful thinking or is there any scientific evidence that mankind could travel into the ...

If time travel is possible, one of the greatest questions is why don’t we see time travelers in the here and now. A new theory explores the idea that time travel creates its own destruction by ...

Physicist Michio Kaku says new CERN experiments suggest time travel could be possible. Also, Wisconsin Gov. Scott Walker talks with WSJ editorial board members about how his state is outcompeting ...

Marty McFly went Back to the Future but what do scientists think about time travel in the real world? Is it possible? And ...

Can we journey through time? Sci-fi author Dete Meserve presents a compelling case for our future in the past. Can we journey through time? From H.G. Wells' "The Time Machine to The Time Traveler's ...