A parallel universe may not just be a quirk of science fiction anymore; scientists think they may have found evidence for the idea of a universe other than our own. It all has to do with a strange Cold Spot, which researchers haven’t had an easy time explaining; some even suggest it could actually be an optical illusion. But new research reveals something far more bizarre may be going on.
NASA first discovered the baffling Cold Spot in 2004. The Cold Spot is 1.8 billion light years across and, as you may have guessed, colder than what surrounds it in the universe. Scientists thought perhaps it was colder because it had 10,000 less galaxies than other regions of similar size. They even thought perhaps the Cold Spot was just a trick of the light.
But now an international team of researchers think perhaps the Cold Spot could actually offer evidence for the concept of a multiverse. The Guardian explains an infinite number of universes make up a multiverse; each having its own reality different from ours. These scientists say they’ve ruled out the last-ditch optical illusion idea. Instead, they think our universe may have collided with another in what News.com.au described as something like a car crash; the impact could have pushed energy away from an area of space to result in the Cold Spot.
Physicist Tom Shanks of the University of Durham said in a statement, “We can’t entirely rule out that the Spot is caused by an unlikely fluctuation explained by the standard model. But if that isn’t the answer, then there are more exotic explanations. Perhaps the most exciting of these is that the Cold Spot was caused by a collision between our universe and another bubble universe.”
If more research backs up this new idea, “…then the Cold Spot might be taken as the first evidence for the multiverse – and billions of other universes may exist like our own.”
Eight scientists from institutions in the United Kingdom, Chile, Spain, and the United States collaborated on a study recently published in the Monthly Notices of the Royal Astronomical Society.