Light has always been the stage on which quantum mechanics performs its strangest tricks, and the double-slit experiment is ...

In an effort to bring together the domains of gravity and quantum theory, Albert Einstein and Nathan Rosen proposed a ...

Wormholes are often imagined as tunnels through space or time—shortcuts across the universe. But this image rests on a ...

Over a century ago, Albert Einstein found a paradox during a thought experiment involving mirrors moving at the speed of light. Now, a new set of calculations may have unravelled it. “If you search ...