Wormholes are a strange concept to most, the ability of space-time travel only seen in the movies. However, scientists and physicists alike are studying the possibility of wormholes as a means for time travel. Because not much is known about black holes, not much can be known about wormholes, and the reality of their existence or the possibility of their use. Regardless, many visions have been developed and many theories have been created.

According to researchers Roman Buniy and Stephen Hsu, traversable wormholes and time machines cannot be both stable and predictable. Albert Einstein and Nathan Rosen published the first scientific paper on wormholes in 1935, describing how it might be possible for two distant regions of space-time to be connected through a tunnel-like spatial shortcut. A wormhole consists of two or more "mouths” connected to a "throat" which provides the passage. A traversable wormhole could be used for either travel from one point to another, or from one time to another. Unfortunately, according to the research, quantum effects are necessary for the construction of stable traversable wormholes. This would cause the wormhole to behave unpredictably; you might not know where (or when) you would come out. Although using wormholes as time machines is a popular idea in countless sci-fi movies, the actuality is that it is impossible.

"We aren't saying you can't build a wormhole. But the ones you would like to build - the predictable ones where you can say, ‘Mr. Spock will land in New York at 2pm on this day’ - those look like they will fall apart," Dr Hsu said.

Although most sources tell us that time travel through wormholes is impossible to create, others support the idea. By journeying through a wormhole, you could, by theory, travel faster than the speed of light, that is, fast than a beam of light would travel through normal space-time. Because of this idea, wormholes open the possibility of time travel.

Theorists believed that wormholes couldn’t exist for more than an instant of time. If it were possible to travel through the wormhole, a person would run into a singularity. More recent calculations, however, show that an advanced civilization might be able to create wormholes and make them work. By using “exotic matter,” matter with a negative energy, physicists could prevent a wormhole from collapsing on itself. In the far future, the possibility of being able to use wormholes for time travel just may become reality.

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