Scientists Leah Broussard and others at Oak Ridge National Laboratories in Tennessee believe they’ve created an experiment to detect evidence for a parallel universe based on discrepancies in neutron decay rates. Their ideas are based on so-called neutron “parity violation.” To explain differences in neutron decay rates, about one out of a 100 neutrons would disappear from our universe and go to a parallel one. The “mirror matter” is shared between our reality and a parallel one. This would also explain the existence of Dark Matter in our universe at exactly the amounts observed. The parallel universe would be colder than ours and have exactly the inverse amount of Dark Matter as ours. “The jaw-dropping suggestion is that neutrons are only a part-time resident of our universe. The rest of their time is spent in a parallel reality, where any protons they emit would go undetected” according to Zurab Berezhiani at the University of L’Aquila in Italy.
According to the Michael Brooks, author of the New Scientist article, “it seems reasonable to expect that there is also a mirror version of life—and significantly more of it than we can see.” If the parallel universe exists, “it would form a bubble of reality nestling within the fabric of space and time alongside our own familiar universe, with some particles capable of switching between the two.”