Under that reasoning, certain exotic structures of spacetime called closed timelike curves may be real—and they may allow a ...

This video breaks down the most famous ways time travel could work, from relativistic speed to black holes, wormholes, ...

A ring in space, at least on paper, can do something a black hole cannot. It can connect distant regions without forcing anything through crushing gravity or a singularity.

Time travel has long been a favorite idea in science fiction. Stories about changing the past or visiting the future have ...

Stephen has degrees in science (Physics major) and arts (English Literature and the History and Philosophy of Science), as well as a Graduate Diploma in Science Communication. Stephen has degrees in ...

Scientists have detected the "fingerprints" of a black hole's event horizon—the boundary from which nothing can escape—for the first time, according to research published Wednesday. The discovery was ...

Black holes are some of the most mysterious objects in the universe, but they aren’t always silent. When two black holes are close enough to each other, they spiral towards one another, eventually ...