What if wormholes were never cosmic tunnels at all? New research suggests Einstein and Rosen’s famous “bridge” may actually reveal something even stranger: time itself could flow in two directions at ...

This computer illustration shows an Einstein-Rosen bridge, also known as a wormhole. Wormholes feature heavily in the fifth season of Netflix series Stranger Things, whose series finale airs Dec. 31.

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.

Wormholes have long served as science fiction’s favorite shortcut through the cosmos, but a growing body of theoretical physics research suggests they will never function as tunnels. That does not ...

An Einstein-Rosen bridge is a hypothetical, yet unproven, feature of spacetime. In theory, these so-called wormholes provide a shortcut through the Universe to connect two separate points in ...