A peer-reviewed paper claims to solve time travel’s biggest philosophical snag—the dreaded grandfather paradox. The twist? Reality might auto-correct. What if you went back to stop a pandemic—but ...

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 ...

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 ...