To unravel the mysteries of black holes, a person simply has to risk entering one of them. However, there is a rather tricky catch: a person can only do this if the corresponding black hole is supermassive and isolated, and if the person entering the black hole does not expect to report the results to anyone in the entire universe.
Black holes are among the most common astrophysical objects in our universe. These intriguing objects seem to be an important part of the evolution of the universe from the Big Bang to the present day. They have probably even influenced the formation of human life by their presence and their effect on space. All types of black holes have an event horizon, a point of no return. Everything that passes through this point will be absorbed and disappear forever, but where to? This question interests people more than anything else, so scientists ponder the possibility of human study of objects.
On the event horizon, the black hole’s gravity is so strong that no mechanical force can overcome it or counteract it. Even light, the fastest moving object in our universe, cannot escape – hence the term “black hole” itself.
If a person tries to enter an ordinary black hole, he will not survive, because the matter of which he is made will be turned into spaghetti of molecules. A person falling into a supermassive black hole would reach the event horizon much farther from the central source of gravitational pull, which means that the difference in gravity between his head and his toes is almost zero. Thus, a person would be able to pass through the event horizon unnoticed, not stretch into a long thin noodle, survive, and swim past the black hole horizon painlessly. However, whatever he learns about what is inside the black hole, he will not be able to tell anyone, since no way of returning from there is yet known.