Scientists from the Perimeter Institute for Theoretical Physics in Ontario preassume that two Universes exist as mirror images of each other. As per the Physicists, the other Universe has antimatter of the very same extent our Universe is made of; these are a few assumptions made by the scientists.
Scientists also said that these two mirror-like universes are symmetrical to each other in space and move in the opposite direction in time.
Other than this information, the scientists also said that their theory doesn’t only speaks about the prevalence of matter over the antimatter we are used to in our Universe, but this has also allowed us to preassume about the dark matter nature. This very mysterious substance interacts indirectly with all the electromagnetic radiation.
The scientists admitted that a few of the details proposed by them still require a lot of clarifications. But they also do not find their theory unbelievable as it doesn’t contradict data available on particles and the fields and goes very well with the fundamental symmetry of physical laws, which is the principles of CPT invariance.
This is not the only recent attempt to explain the phenomenon of dark matter. A little more than a month ago, astrophysics from the University of Oxford suggested that it, like dark energy, is a substance with a negative mass, which, in particular, can explain the expansion of the Universe – Journal Review Letters, recently published
It also said, “It is believed that dark energy is 74 percent of the universe, and dark matter – 22 percent. The intergalactic gas accounts for only 3.6 percent, and the stars, planets and other objects of this kind – less than half a percent of the Universe, as it appears from the point of knowledge of modern scientific knowledge.”