Physicists have demonstrated that waves can bounce off boundaries in time, not just in space, producing signals that behave ...

If you were to travel back in time to kill your grandparents — let’s ignore the ‘why’ here, for the sake of argument — you would never have been born. Which means there was nobody to kill your ...

Avengers: Endgame is an iconic finale for the MCU, but its best moments owe a lot to Star Trek: The Next Generation's best ...

I thought the bunker twist was wild, but this would be next-level.

Time travel has been one of the biggest tropes in science fiction for years. But what if you could actually go back in time and visit a loved one before their death? There's, obviously, a lot we don't ...

From Avengers: Endgame to Looper, any fictional story about time travel has to deal with one simple fact: time travel doesn’t make any sense. While aspects of time travel exist in the real world — ...

Add Yahoo as a preferred source to see more of our stories on Google. Taking in some deep breaths of pristine air alongside Reeves sounds pretty cool to us, and that’s the beauty of this genre: There ...

Star Trek has used time travel plenty of times across the various shows in the franchise, and we think these are the best ...

Time travel is one of the most popular sci-fi subgenres, and this iconic time travel series started almost four decades ago.

Our editors and experts handpick every product we feature. We may earn a commission from your purchases. What makes time-travel books so fascinating? A key genre of the science fiction ecosystem, ...