Wormholes are theoretical passages through space-time that could potentially allow for faster-than-light travel. They are predicted by the equations of general relativity, which describe how gravity warps space and time. While wormholes have not been observed, they have become a popular concept in science fiction as shortcuts for interstellar travel, allowing explorers to traverse vast distances in the universe.
There are two main types of theoretical wormholes: traversable wormholes and Einstein-Rosen bridges. However, creating or stabilizing a wormhole for human use remains purely theoretical, as the necessary exotic matter to keep a wormhole open has yet to be discovered.