Time travel has long lived in the realm of fantasy, but a growing body of research is quietly shifting it into a serious scientific conversation. Instead of DeLorean-style leaps into the past, ...

Time travel has long been a topic of science fiction, filled with thrilling possibilities and mind-bending problems. The most famous of these problems is the "grandfather paradox". If someone travels ...

Add Yahoo as a preferred source to see more of our stories on Google. In the physical world, time marches in one direction, but things aren’t so straight forward in the quantum realm. Researchers have ...

A new experiment using Google’s Sycamore quantum processor has taken a bold step toward testing ideas from quantum gravity. For the first time, researchers successfully sent quantum information ...

Scientists have taken one more step down the very long road to time travel. A new paper combines the Alcubierre “warp” drive with the idea of “controlled closed timelike curves.” Though far out, ...

Physicists have coaxed particles of light into undergoing opposite transformations simultaneously, like a human turning into a werewolf as the werewolf turns into a human. In carefully engineered ...