For many years now, one of the challenges that cosmology has faced has been based on two values: 67 and 73. They both refer to the Hubble constant, which is used to measure the speed at which the universe is expanding. These values are both the result of highly precise methods and observations. However, they do not seem to reconcile. What scientists have started considering is that there might be something that existed when the universe was very young.
These new simulations in 3D show that there could have been magnetic fields in the universe that existed just after the Big Bang and were responsible for changing the formation of hydrogen in the early universe. This is important because it would affect the CMB, which is used by scientists to understand how the universe expanded over time.
