A new theory has attempted to explain whether wormholes, a theoretical connection of two separate points in spacetime, can be used as a viable means for space travel in the future.
But what are wormholes?
Theorized by
physics giant Albert Einstein and by American-Israeli physicist Nathan Rosen, who coined the term “Einstein-Rosen bridge,” a wormhole is a hypothetical short-cut that could facilitate travel between two otherwise distant points in spacetime. Although wormholes have never been observed, their possible existence is compatible with Einstein’s Theory of General Relativity but there are counter theories that suggest they can’t exist.
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Before a new study by physicist Pascal Koiran, it was widely believed a form of theoretical exotic matter would be needed to keep a wormhole open, as it would disappear quickly after its creation without a force to prevent it from closing.
Now, a study, published in the scientific journal
arXiv in October, suggests that wormholes might be more stable than previously thought.
Albert Einstein (credit: PIXABAY)
Koiran proposes to analyze wormholes using not the popular Schwartzchild metric commonly used to analyze
black holes, but the Eddington-Finkelstein metric.
The study found that by using the Eddington-Finkelstein metric, a particle could be documented crossing the event horizon, the crossing point into the wormhole, go through it and reach the other side in a finite amount of time. That means the path of a particle passing through a wormhole could be more easily traced using this metric.
If particles can cross through a wormhole and reach the other side unharmed, perhaps someday humans might be able to travel through a wormhole and reach distant points in spacetime that are beyond reach currently.
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