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 ...

A new theory explores the idea that time travel creates its own destruction by introducing instability into certain realities, which eventually lead to the most stable possible timeline—one without ...

Star Trek's iconic warp drive, once pure science fiction, is now inspiring real-world astrophysicists. Scientists are developing theoretical models that could enable faster-than-light travel by ...

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 ...

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 ...

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 ...