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 ...

Our universe does host life, but it’s not the most optimal universe for life. Published in 1962 by American astronomer Frank ...

In the story "Sidewise in Time," a mathematics professor named Minott predicts that patches of parallel universes—worlds where human history unfolded differently—will start to tear through ...