A doorway to another universe, large enough to swallow a spaceship, may exist at the centre of the Milky Way. Wormholes (artists's impression pictured), are thought to allow travel between distant points in space and time.
What is a Wormhole? A wormhole is a theoretical passage through space-time that could create shortcuts for long journeys across the universe. Wormholes are predicted by the theory of general relativity. But be wary: wormholes bring with them the dangers o
"On Space Time Foam" was a site-specific installation created by Argentinian artist Tomàs Saraceno using multiple layers of translucent PVC membranes suspended m) above the ground at the Hanger Bicocca in Milan, Italy.
Once scientists are able to create traversable wormholes in space, time travel will be easy, says astrophysicist Eric Davis. Others disagree, saying even if a wormhole is found it would be too tiny for even a person to fit inside, let alone a spaceship.