The cosmological evidence for the creation of the cosmos is vast. The first step in discussing this is whether there was a beginning to the cosmos or whether space, time, and matter/energy are eternal. Black holes prove the universe had a beginning.
For many years, atheists maintained that if believers can say that God has always existed, it is just as reasonable to say that matter/energy has always existed. Unbelieving scientists proposed many theories, such as the oscillating universe, to avoid the message of Genesis 1:1. However, the laws of thermodynamics made it difficult to believe that the cosmos has always existed.
New observations by astronomers have offered another proof that there was a beginning. Black holes are no longer just a theoretical tool of Einstein and other physicists. Astronomers have seen evidence of black holes. They have photographed them, and now but they have seen them in action. Scientists observed two black holes colliding, and they have detected a black hole swallowing a neutron star.
Neutron stars are the incredibly dense remains of a stellar collapse. One teaspoon of matter in a neutron star would have a mass of a billion tons. As astronomers watched, a black hole caught a neutron star in its gravitational field. The neutron star made 500 orbits of the black hole in less than a minute, generating as much energy as all the visible light in the observable universe. Scientists on Earth detected the bursts of energy from the collision in January of 2020, but they just released the data on June 29, 2021, in Astrophysical Journal Letters.
This observation shows that black holes are slowly vacuuming all of the matter in the cosmos into a single massive black hole. If the cosmos were eternal, they would have already completed that process. The fact that we see an early stage of a black hole eating the densest star in the cosmos shows that it will eventually happen if things continue as they are now. By this action, black holes prove the universe had a beginning.
There was a beginning to time, space, and matter/energy. All of the evidence supports that fact. The design features that we see everywhere in creation show us that we are not some cosmic coincidence but the product of an intelligence that had a purpose in creating us.
— John N. Clayton © 2021
Reference: https://iopscience.iop.org/article/10.3847/2041-8213/ac082e