Chinese researchers are poring over a puzzling gravitational wave signal that appears to defy the standard script of black hole collisions, reviving one of physics’ most audacious possibilities: that ...

While parallel universes are a staple of science fiction, there are some real scientific theories to support them. But if parallel universes do exist, could we ever travel to them? It certainly wouldn ...

Throughout history, there have been occasional little mysteries that have centered around supposed “time travellers” claiming to be from parallel dimensions. One occurred in Ukraine back in 2006, ...