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Is Our Observable Universe Part of a Larger Universe? New Theory Suggests „Yes“

The Noble-prize winning physicist Enrico Fermi used to criticize his colleagues work not because it was crazy, „but because it was not crazy enough!“ Long before Fermi, Giordano Bruno was burned at the stake in Rome for saying that we lived in a universe of infinite stars and planets.

So we feel safe and sensible asking a perfectly 21st-Century question: could our universe be located within the interior of a wormhole which itself is part of a black hole that lies within a much larger universe?

Such a scenario in which the universe is born from inside a wormhole (also called an Einstein-Rosen Bridge) is suggested in a paper from Indiana University theoretical physicist Nikodem Poplawski.Einstein-Rosen bridges have never been observed in nature, but they provide theoretical physicists and cosmologists with solutions in general relativity by combining models of black holes and white holes.

Poplawski takes advantage of the Euclidean-based coordinate system called isotropic coordinates to describe the gravitational field of a black hole and to model the radial geodesic motion of a massive particle into a black hole.

„This condition would be satisfied if our universe were the interior of a black hole existing in a bigger universe,“ he said. „Because Einstein’s general theory of relativity does not choose a time orientation, if a black hole can form from the gravitational collapse of matter through an event horizon in the future then the reverse process is also possible. Such a process would describe an exploding white hole: matter emerging from an event horizon in the past, like the expanding universe.“

A white hole is connected to a black hole by an Einstein-Rosen bridge (wormhole) and is hypothetically the time reversal of a black hole. Poplawski’s paper suggests that all astrophysical black holes, not just Schwarzschild and Einstein-Rosen black holes, may have Einstein-Rosen bridges, each with a new universe inside that formed simultaneously with the black hole.

„From that it follows that our universe could have itself formed from inside a black hole existing inside another universe,“ he said.

By continuing to study the gravitational collapse of a sphere of dust in isotropic coordinates, and by applying the current research to other types of black holes, views where the universe is born from the interior of an Einstein-Rosen black hole could avoid problems seen by scientists with the Big Bang theory and the black hole information loss problem which claims all information about matter is lost as it goes over the event horizon -in turn defying the laws of quantum physics.

Casey Kazan via materials provided by Indiana University

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