Time travel has shifted from pure fantasy to a serious, if highly constrained, topic in modern physics. The equations that describe gravity, quantum fields and the structure of spacetime now allow ...

While the US is attempting to come up with CLT, researchers from the Purple Mountain Observatory in Nanjing and the ...

Tracking time is one of those things that seems easy, until you really start to get into the details of what time actually is. We define a second as 9,192,631,770 oscillations of a cesium atom.

WASHINGTON, July 3 (Reuters) - Time is a slippery thing, as profound thinkers like physicist Albert Einstein and, well, fictional time traveler Dr. Who plainly understood. The latter, in a 2007 ...

When it comes to the idea of retrocausality in the quantum realm, how does time dilation affect entanglement? If you sent one of a particle pair much faster than the other and then measured one of ...

Time is often treated as constant, but Einstein showed that it isn’t. Speed and gravity both affect how fast time moves, and this has been proven through real experiments and satellite technology.

The answer comes from a counterintuitive result of special relativity, a field of physics which is notoriously difficult to ...

James is a published author with multiple pop-history and science books to his name. He specializes in history, space, strange science, and anything out of the ordinary.View full profile James is a ...