Could it be that while you are currently reading this gallery you are also performing on a stage in front of thousands of fans? Or taking a leisurely stroll on a beautiful beach with your partner?

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 ...

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 ...

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 ...

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 ...

It's the stuff of science fiction — parallel worlds that fan out in time and space. But do such parallel worlds exist? It turns out that at least some physics theories do allow for the existence of ...

It’s one quantum leap for mankind. Parallel dimensions are no longer restricted to Marvel flicks. Google’s cutting-edge quantum chip Willow has prompted discussions among scientists about the ...

It is possible that there are many other universes that exist parallel to our universe. Theoretical physicist Brian Greene, author of The Elegant... A Physicist Explains Why Parallel Universes May ...