We all know we live in three-dimensional space. But what does it mean when people talk about four dimensions?Author Zsuzsanna Dancso Associate ...

Einstein–Rosen bridges may reflect a two-directional structure of time that preserves information and hints at a pre–Big Bang universe.

It feels so obvious that time moves forward that questioning it can seem almost pointless.

A team of physicists led by Jared Fuchs at the University of Alabama in Huntsville has produced a peer-reviewed warp drive solution that works within known physics, using only positive energy and ...