Wormholes: Cosmic Shortcuts or Science Fiction?

A wormhole is a hypothetical tunnel through spacetime that could connect distant regions of the universe.
The idea comes from solutions to Einstein’s general relativity equations.
They’re sometimes called Einstein–Rosen bridges after the physicists who proposed them in 1935.
A traversable wormhole could, in theory, allow faster-than-light travel between galaxies.
Wormholes might also connect different universes in a multiverse scenario.
Exotic matter with negative energy would be needed to keep a wormhole open.
So far, wormholes remain purely theoretical—none have been observed.
They’re a favorite of science fiction, appearing in films like Interstellar and countless novels.
If real, wormholes could revolutionize space travel and even time travel.
For now, they remain one of physics’ most intriguing “what ifs.”