The event horizon of a black hole represents the point of no return for matter and incoming light. Eg,
The sun cannot become a black hole becauseits mass is too small. But in general, the largest black holes, which are called supermassive, are located in the center of all galaxies. At the same time, scientists themselves cannot explain why this is so. In addition, the event horizon of such supermassive holes is larger than the solar system.
But what would happen to you if you decided to enter a black hole? In fact, space and time there would be so distorted that they would swap places.

Beyond the black hole, experts believethere are distant parts of our universe or even other universes. But to answer this question accurately, scientists will have to find a theory of gravity that surpasses Einstein's "quantum" theory.