Cosmology and quantum physics both offer tantalizing possibilities that we inhabit just one reality among many. But testing ...

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 ...

Add Yahoo as a preferred source to see more of our stories on Google. Thanks to science fiction, we all have a basic grip on the theory of the multiverse: the idea that there are innumerable parallel ...

I can’t be the only one here displeased by our current timeline. It’s pretty hard to experience endless COVID, debates about whether it’s genocide or just a little ethnic cleansing, and climate change ...