What if there are other universes, just like ours? With an infinite number of Earths? With uncountable versions of you? And ...

In the season 2 episode "Mirror, Mirror," Star Trek perfected the alternate universe trope long before Hollywood's multiverse ...

Scientists have long pondered on one of the universe's greatest mysteries: Are we alone? They have searched the cosmos, but so far, there has been no sign of extraterrestrial life. Is it possible that ...

It’s broadly agreed that the universe is constantly expanding. The why of it all, though, is a little more mysterious. Most researchers agree that dark energy is responsible for our universe’s ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. Do multiverses exist? Is our universe one of many? The ...

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 ...

Below, Halpern shares five key insights from his new book, The Allure of the Multiverse: Extra Dimensions, Other Worlds, and Parallel Universes. Listen to the audio version—read by Halpern himself—in ...

Our universe might be really, really big — but finite. Or it might be infinitely big. Both cases, says physicist Brian Greene, are possibilities, but if the latter is true, so is another posit: There ...

Kyle has a degree in Film, Television, and Cultural Studies and has loved video games for as long as he can remember. He's owned every PlayStation, dabbled with the occasional Xbox, and even owned a ...