However, the diameter of the observable universe is said to be over 900 billion light-years, right? Oh yes, the Beijing ...

Scientists are investigating the possibility that our universe isn't the only one after detecting a mysterious gravitational wave ...

Scientists have come up with theories about parallel universes that are so wild they’d make the most creative science fiction ...

One of the most popular science fiction tropes in movies and TV, right up there with time travel and extraterrestrial life, is the idea of parallel universes or alternate universes. The concept of an ...

A backward, mirror universe could explain the existence of dark matter. If an anti-universe exists, it would run backward in time, before the Big Bang. Dark matter, then, could be right-handed ...

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 ...

How did we not notice this startling detail about Peacemaker Season 2's alternate universe sooner? This twist genuinely took ...

If you’ve ever wondered what happens when the mundane chaos of a comic book store collides with universe-level stakes, The Big Bang Theory spinoff Stuart Fails to Save the Universe on HBO Max might fi ...