Even if it turns out that time loops never take shape, studying them provides key insights into the deepest rules of reality.

Tourists of time all know one rule: never change the past. Whether it's preventing your own conception or handing the blueprints to a time machine to a younger version of yourself, generating a ...

This article was originally published at The Conversation. The publication contributed the article to Space.com's Expert Voices: Op-Ed & Insights. Barak Shoshany, Assistant Professor, Physics, Brock ...

Time feels like the most familiar thing in the world, yet it hides one of physics’ hardest questions: why do we only remember ...

Are black holes as simple as they appear, or is there more to their story? Theories that attempt to resolve the so-called black hole information paradox predict that black holes are much more ...

Scientists, or at least their wild-haired fictional counterparts, promised us time travel and still have not delivered. Forget walking with dinosaurs or killing baby Hitler; I’d be happy just to warn ...

If proven, their theory could revolutionize how we understand black holes and the laws that govern the physics of the entire universe. The paradox, as first identified by the late Stephen Hawking, has ...

Hello,<BR><BR><BR>I have been trying to think of a way to phrase this question so I do not appear to be a complete moron because I do not think I am but here goes.<BR><BR>Why is each observers frame ...

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 ...