Does Our Universe Live Inside a Wormhole?
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A long time ago, in a universe much larger than our own, a giant star collapsed. Its implosion crammed so much mass and energy together that it created a wormhole to another universe. And inside this wormhole, our own universe was born. It may seem fantastic, but a theoretical physicist claims that such a scenario could help answer some of the most perplexing questions in cosmology.
A number of facets about our universe don't make sense. One is gravity. Scientists can't construct a mathematical formula that unites gravity with the three other basic forces of nature: the strong and weak nuclear forces and electromagnetism. Another problem is dark energy, the mysterious phenomenon that seems to be expanding our universe at an accelerating rate, even though gravity should be contracting it or at least slowing the expansion.
These conundrums may be a result of stopping the search for the riddle of the cosmos at the big bang, says Nikodem Poplawski of Indiana University in Bloomington. The big bang theory holds that our universe began as a single point—or singularity—about 13.7 billion years ago that has been expanding outward ever since. Perhaps, Poplawski argues, we need to consider that something existed before the big bang that gave rise to it.
Enter the wormhole. According to Poplawski's calculations, the collapse of a giant star in another universe could have created a wormhole, a space-time conduit to another universe. Between these two openings, conditions could have developed that were similar to those we associate with the big bang, and therefore our universe could have formed within the wormhole.
Such a scenario could address the quandaries about gravity and the expanding universe. If another universe existed before our own, gravity could be traced back to a point where it did unite with the nuclear forces and electromagnetism. And if our universe is now expanding toward the other end of the wormhole, this movement—rather than the elusive dark energy—could account for our expanding universe.
We consider the radial geodesic motion of a massive particle into a black hole in isotropic coordinates, which represents the exterior region of an Einstein–Rosen bridge (wormhole). The particle enters the interior region, which is regular and physically equivalent to the asymptotically flat exterior of a white hole, and the particle's proper time extends to infinity. Since the radial motion into a wormhole after passing the event horizon is physically different from the motion into a Schwarzschild black hole, Einstein–Rosen and Schwarzschild black holes are different, physical realizations of general relativity. Yet for distant observers, both solutions are indistinguishable. We show that timelike geodesics in the field of a wormhole are complete because the expansion scalar in the Raychaudhuri equation has a discontinuity at the horizon, and because the Einstein–Rosen bridge is represented by the Kruskal diagram with Rindler's elliptic identification of the two antipodal future event horizons. These results suggest that observed astrophysical black holes may be Einstein–Rosen bridges, each with a new universe inside that formed simultaneously with the black hole. Accordingly, our own Universe may be the interior of a black hole existing inside another universe.
So searching for the limits of our universe would bring us to one of the two event horizons?
Could there actually be worms??? Something that moves thru worm holes.
Einstein says NO. It would be very interesting.