Dubbing these “closed timelike geodesics” (CTGs), Ralph and Sajeendran explain in the paper: “Such a CTG would be ideal for ...

Star Trek's iconic warp drive, once pure science fiction, is now inspiring real-world astrophysicists. Scientists are developing theoretical models t ...

In 1992, three physicists began an argument about how many numbers we need to fully describe the universe. Their surprisingly ...

The world’s best clocks may be sensitive to an odd mix of quantum and relativistic effects that would stretch time and test ...

John Clarke, Michel H. Devoret and John M. Martinis shared the 2025 Nobel Prize in Physics for their work showing how bizarre ...

What if the universe remembers? A bold new framework proposes that spacetime acts as a quantum memory. For over a hundred ...

This Star Trek concept ignited a dream that humans could one day travel faster than the speed of light. Now physicists are ...

A controversial prediction about black holes and the expansion force of the universe could explain a cosmology mystery ...

Easter Island’s Moai statues weren’t dragged - they walked. Physics and experiments uncover how ancient islanders made stone ...

Marty McFly went Back to the Future but what do scientists think about time travel in the real world? Is it possible? And ...

From Einstein's theory of relativity to cutting-edge explorations in quantum mechanics, scientists have proposed various theoretical paths to achieve time travel. Although most remain in the realm of ...