Add Yahoo as a preferred source to see more of our stories on Google. While parallel universes are a staple of science fiction, there are some real scientific theories to support them. But if parallel ...

Find the answer for Time travel or parallel universes, in sci-fi from the people who brought you the USA TODAY Daily ...

Time travel has long been a topic of science fiction, filled with thrilling possibilities and mind-bending problems. The most famous of these problems is the "grandfather paradox". If someone travels ...

In the season 2 episode "Mirror, Mirror," Star Trek perfected the alternate universe trope long before Hollywood's multiverse ...

This universe is getting to be a lot. As if troubling political trends, climate change, and a rising billionaire class weren’t bad enough, the space beyond our little blue planet is equally full of ...

(NewsNation) — Theoretical physicist Dr. Michio Kaku supports the concept of parallel universes, but he says people shouldn’t get their hopes up about meeting their doppelganger in another dimension, ...

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 ...