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Rewritten: Harnessing Exotic Matter to Construct a Stable Wormhole

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Journey through time and space, from one end of the universe to another. This is the extraordinary potential of wormholes, theoretical passages where space-time bends and connects distant locations.

Although it may sound like science fiction, wormholes have a basis in Albert Einstein’s general theory of relativity, just like black holes. “We study wormholes for fun, but also to explore the physical possibilities of space-time,” explains Toby Wiseman, a theorist at Imperial College London. “And who knows, maybe one day in the distant future, this could become a reality.”

Contrary to their mystical reputation, wormholes are not so far-fetched. They are predicted by general relativity, which postulates that mass warps the fabric of the universe and creates gravity. In the context of an expanding universe, the big bang, and black holes, wormholes fit naturally into the picture. In fact, Einstein himself mathematically described wormholes in the 1930s.

“The beauty of general relativity is that you can define any space-time you want, input it into the Einstein equations, and determine the matter required to support it,” Wiseman explains. So, to create a wormhole, a specific type of matter is needed.

But what kind of matter? The challenge is to find substance that can sustain a stable wormhole without collapsing immediately. In 2020, Juan Maldacena at the Institute for Advanced Study (IAS) …

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