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 ...

Thanks to science fiction, we all have a basic grip on the theory of the multiverse: the idea that there are innumerable parallel worlds in which the chances and choices of the past – the roads not ...

Are parallel universes just a wild theory or something more? In this deep dive, we explore multiverse theory, its many interpretations, and whether we can ever truly know what lies beyond our universe ...

Somewhere in the vastness of the cosmos, there are planets resembling Earth. And on these planets live other versions of you, who have made radically different life choices. So says the theory of the ...