If you’re a fan of science fiction, you may have already heard of wormholes: passageways through space-time that are essentially shortcuts between distant points in the universe. What you may not have heard, though, is that wormholes are a solution to Einstein’s equations of general relativity.
While wormholes could hypothetically exist, it is unlikely that they occur in nature, let alone allow humans to travel through them. This is because the walls of a wormhole would attract each other and, unless something was done to prevent it, they would collapse, crushing everything, and everyone, inside.
Kip Thorne, Feynman Professor of Theoretical Physics, Emeritus, at Caltech, and scientific advisor for the movie Interstellar, explains what wormholes are–and what it would take to keep one open.
Fusion’s original Relatively Speaking series celebrates the 100th anniversary of Albert Einstein’s general theory of relativity.