One of the most popular science fiction tropes in movies and TV, right up there with time travel and extraterrestrial life, is the idea of parallel universes or alternate universes. The concept of ...

Parallel universes crop up in two places in physical theories. One is in our conception of inflation, the theory of the extremely early universe. In those tumultuous times, many u ...

While parallel universes are a staple of science ... you're killing somebody else's. And in that alternate universe, Hitler was always killed by a time-traveling assassin from another universe.

And in that alternate universe, Hitler was always killed by a time-traveling assassin from another universe. When you return to the future, you come back home, with an unchanged past.

Now, researchers in Switzerland and the U.K. have homed in on one particular aspect of this equation to contemplate how a crucial component of our universe affects star formation and, by extension ...

Welcome to McKay’s in Knoxville, Tennessee – a literary labyrinth that’ll make you forget the outside world exists! Step into ...