Parallel universes are something any sci-fi fan worth their salt knows about thanks to decades of pop culture, where they have depicted everything from an evil Mr. Spock with a goatee to a ...

The idea of time travel has been intriguing experts for centuries, with many claiming the feat would be impossible. However, one scientist believes it one day will become a reality, but it will ...

Time integration of differential equations traditionally proceeds in a strictly sequential fashion, which limits the exploitation of modern high-performance computing architectures. Parallel-in-time ...

Have you ever made a mistake that you wish you could undo? Correcting past mistakes is one of the reasons we find the concept of time travel so fascinating. As often portrayed in science fiction, with ...

Jackson Ryan was CNET's science editor, and a multiple award-winning one at that. Earlier, he'd been a scientist, but he realized he wasn't very happy sitting at a lab bench all day. Science writing, ...