Ever dream of a shortcut to a galaxy far, far away? Enter the Interstellar wormhole—a sleek, spherical gateway near Saturn. While wormholes are still unproven (sorry, science fiction fans), the ...

This is an example of a general class of spacetime structures with two mouths connected by a throat, more commonly known as a “wormhole.” In 1962, Robert Fuller and John Wheeler demonstrated that the ...