Pick up any science fiction book from the 1960s, and you’ll find parallel dimensions explained through magic portals or mysterious machines that work “just because.” Today’s readers want stories that ...

If a theory about the physical world is experimentally testable and then verifiable, it will stop existing in the realm of metaphysics and become a part of physics. No matter how weird or vague a ...

Forbes contributors publish independent expert analyses and insights. The Universe is out there, waiting for you to discover it. Why must the Multiverse exist? Quite simply: there must be more ...

Reality is stranger than you think. Seriously. While we go about our daily lives, convinced we understand the basics of ...