Conceptual representation of the opening to a wormhole moving through a nebula. A wormhole (or Einstein-Rosen bridge) is a theoretical 'tunnel' through spacetime, allowed by the theory of general relativity. In principle, a wormhole connects two regi...

Conceptual animation of the opening to a wormhole moving through a nebula. A wormhole (or Einstein-Rosen bridge) is a theoretical 'tunnel' through spacetime, allowed by the theory of general relativity. In principle, a wormhole connects two regions i...

Conceptual representation of the opening to a wormhole moving through a nebula. A wormhole (or Einstein-Rosen bridge) is a theoretical 'tunnel' through spacetime, allowed by the theory of general relativity. In principle, a wormhole connects two regi...

Conceptual animation of the opening to a wormhole moving through a nebula. A wormhole (or Einstein-Rosen bridge) is a theoretical 'tunnel' through spacetime, allowed by the theory of general relativity. In principle, a wormhole connects two regions i...

Two white dwarfs are approaching each other on an inbound spiral that can only result in destrucion, sending gravitational waves deep into the cosmos. They will soon collide to form a Type 1a supernova....

Illustration of two black holes orbiting each other in a combined accretion disc. Eventually the black holes will merge, an event that will produce gravitational waves. Gravitational waves are a prediction of Einstein's theory of general relativity. ...