Might the mere fact of creating a time machine ensure its own elimination from history? That’s the disquieting suggestion of ...

For more than a century, physics has been built on two great theories. Einstein's general relativity explains gravity as the ...

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 ...

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.