What is a Wormhole?

 A wormhole is a theoretical passage through space-time that could create shortcuts for long journeys across the universe. Wormholes are predicted by the theory of general relativity. But be wary: wormholes bring with them the dangers of sudden collapse, high radiation and dangerous contact with exotic matter.

Wormhole theory

In 1935, physicists Albert Einstein and Nathan Rosen used the theory of general relativity to propose the existence of "bridges" through space-time. These paths, called Einstein-Rosen bridges or wormholes, connect two different points in space-time, theoretically creating a shortcut that could reduce travel time and distance.

I.D. Novikov: New analytic models of ”traversable” wormholes

Abstract

The analytic solution of the general relativity equations for spherically symmetricwormholes are given. We investigate the special case of a ”traversable” wormhole i.e., oneallowing the signal to pass through it. The energy-momentum tensor of wormhole matteris represented as a superposition of a spherically symmetric magnetic field and dust matterwith negative matter density. The dynamics of the model are investigated. We discussboth the solution of the equation with a Λ-term and without it. Superposing enough dustmatter, a magnetic field, and a Λ-term can produce a static solution, which turns out tobe a spherical Multiverse model with an infinite number of wormholes connected sphericaluniverses. Corresponding solution can be static and dynamic.