An astrophysicist explains what wormholes are and how these theoretical space-time tunnels have popped up in the solutions to ...

Mind-bending materials called quasicrystals have an orderly structure, but without a regularly repeating pattern. They’ve been found in meteorites and the debris from the first atomic bomb test.

The tiny bots follow patterns of light and "artificial space-time," navigating like craft following the curved space around a ...