According to Albert Einstein’s General Theory of Relativity, black holes can bend space and time. As explained in Relativity Theory, as you approach the speed of light and gravitation, time slows down for individuals and matter. From this, as you approach the black hole, time slows down for individuals and substances.The physical boundary of the black hole, also called the event horizon, is the most accessible point. From this point on, all matter and energy, including light, is stored or destroyed in the black hole. Nobody knows what the black hole is after the event horizon and what is there. According to Stephen Hawking, the information contained in the black hole was disappearing. But then, let’s say that this theory is refuted and the truth cannot be proved.
There are two most popular theories. One of them argues that the information entering the black hole has spread to another point in the universe. Another argues that information entering the black hole in connection with multiple universes enters another universe. However, it should be noted that the research on this subject is extremely inadequate and we know almost nothing.