11 years ago, Star Trek quietly introduced one of the coolest worlds in its multiverse without anyone knowing. In recent years, the franchise has explored more and more of its multiverse, and in ...

Quantum mechanics and the many-worlds theory suggest infinite parallel universes where every choice creates a new branch of ...

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 ...