A new theory from the University of Alaska Fairbanks (UAF) suggests that time, not space-time, may be the true foundation of reality. The idea is that time itself has three dimensions, while space is ...

Wormholes are often imagined as tunnels through space or time — shortcuts across the universe. But this image rests on a misunderstanding of work by physicists Albert Einstein and Nathan Rosen. In ...

An expanding universe complicates this picture just a little bit, because the universe absolutely refuses to be straightforward. Objects are still emitting light, and that light takes time to travel ...