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 ...

At the turn of the century, it sounded as if string theory could give us big answers about the universe. Well… has it?

The universe is a strange, beautiful place—rich with possibilities and governed by the odd rules of quantum mechanics. One of the most mind-bending ideas from this realm is the many-worlds ...

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 ...

Google's latest breakthrough in quantum computing, the Willow chip, is reigniting discussions among the scientific community about the possibility of parallel universes. Hartmut Neven, the founder and ...

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 ...

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Image: Ralph Losey using AI. In the history of technological revolutions, there are moments that challenge not only our understanding of what is possible but the very nature of reality itself.

This interview was originally broadcast on January 24, 2011. The Hidden Reality: Parallel Universes and the Deep Laws Of the Cosmos is now available in paperback. Greene is also hosting a NOVA series ...

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 ...