Einstein-Rosen Bridge (Wormhole)

An Einstein-Rosen Bridge, or wormhole, is a theoretical tunnel in spacetime connecting two distant regions of the universe, allowing potentially faster-than-light travel between them. Imagine spacetime as a curved sheet; a wormhole is like a shortcut through this sheet, linking two separate points via a folded path. While Einstein's equations suggest such structures could exist, they remain hypothetical, with significant scientific challenges—like stability and energy requirements—to their realization or detection. Wormholes represent a fascinating possibility for understanding the universe, though they have not been confirmed to exist in reality.