Time travel is deterministic and locally free, a paper says—resolving an age-old paradox. This follows research observing that the present is not changed by a time-traveling qubit. It’s still not very ...

When uncertainty is high it blinds you to what’s driving the market. If fundamentals are improving, the market rises as the ...

The dream of time travel has fueled stories, films, and scientific debates for generations. The idea that you could step into a machine and reappear in another era has captivated people for as long as ...

Time travel is a familiar element of science fiction, but rarely has it been put under a microscope quite like it is in Washington filmmaker Stimson Snead’s “Tim Travers & the Time Traveler’s Paradox.

Here’s what you’ll learn when you read this story: In a peer-reviewed paper, a scientist says he has mathematically proven the physical feasibility of a specific kind of time travel. The paper appears ...