Author: Enrique Gaztanaga, Professor of Astrophysics at Institute of Cosmology and Gravitation, University of Portsmouth

remotevfx.com/Shutterstock 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 1935, while studying the behaviour of particles in regions of extreme gravity, Einstein and Rosen introduced what they called a “bridge”: a […]