Time travel is deterministic and locally free, a paper says —resolving an age-old paradox. This follows research observing ...

Warp drives have long lived in the realm of science fiction, but the underlying physics that inspired them is very real and ...

In a makeshift lab, a trio of brainiac students argue over their time-travel device. The skeptic on the team has her doubts—not that the invention will work, but whether they should be mucking around ...

Most people see time as a one-directional arrow in the universe's symphony. But the world of theoretical quantum physicists is one in which the direction of time is far more flexible. These experts ...

Hawking once said, "I have experimental evidence that time travel is not possible," and recounted his unusual test — which involved throwing a party on Jun 28, 2009. But Hawking didn't send out ...

Time travel has been a beloved trope in science fiction for decades. While it may seem like the stuff of novels and movies, there are several real-life instances where individuals have claimed to have ...

This article was published in Scientific American’s former blog network and reflects the views of the author, not necessarily those of Scientific American It’s northern summer time, and thoughts drift ...