What's Inside a Black Hole?
Black holes are a part of spacetime which is the strongest gravity that sucks in anything even light. Everything that is sucked in there will not be able to return. Black Hole is created by a star that is formed under conditions of balanced radiation and gravity.
When the star runs out of fuel and can no longer carry out nuclear fusion reactions, the level of outgoing radiation is weaker than the gravitational force inward. Stars also experience collapse, and eventually experience a supernova explosion. This explosion is what allows the creation of two outcomes, namely the star becomes a Neutron star, or becomes a black hole.
For those who have watched Christopher Nolan's film Interstellar, you will definitely be presented with a scene where the protagonist must be willing to sacrifice himself and be sucked into the Black Hole. Then, the protagonist falls into a circle which turns out to be a five-dimensional physical form that is visualized as a Tesseract from a child's room and a scene from the past.
There, time and space are distorted so that the protagonist can look at himself in the past and realize that it turns out that the awkwardness he experienced was from himself, in the future and within the five-dimensional Tesseract.
So, do you believe it? Do you believe that in the Black Hole there is a five-dimensional space as shown in the film? So, are black holes really "holes"? If so, where do black holes lead?
However, in reality no one knew what was inside the Black Hole. And we have to accept the fact that we can't go inside the Black Hole and find out what's in there. And even if we go in, we can never go back.
Stephen Hawking says that it is possible that black holes are gateways to other dimensions, but this claim is also only a theory. If black holes are gateways to other dimensions, then is our universe actually inside a black hole? Yes, that sounds pretty plausible.
In 1916, Albert Einstein used his famous theory of relativity to explain the attraction of gravity so strong that it sucks in light. It wasn't until the 1960s that scientists realized Einstein's theory was correct and (mathematically) discovered black holes.
Using Einstein's formula, Hawking and Roger Penrose described the origin of black holes. When a star with an extraordinary mass dies, it collapses into space.
Because of such a large mass, he will create a great gravitational attraction called the Singularity. This singularity is what sucks all the particles that approach the edge (event horizon). If we approach the event horizon, our body (and all of its mass) will stretch like spaghetti because the black hole distorts the space around it.
The theoretical physicist (Stephen Hawking) dedicates his life to studying black holes and unraveling the mysteries of the universe. The first black hole was discovered in 1971 and it is estimated that there are 100 million black holes in the universe. Allegedly, the black hole is the center of the many galaxies scattered in the universe. The closest black hole from Earth is thousands of light years away, so we are not affected. And the Sun will not be able to turn into a black hole because the Sun is not big enough to make a black hole.
Hawking said black holes store incredible information. The radiation emitted by a black hole may store information such as the age, mass and composition of the star that died and became the black hole. Possibly, black holes are gateways to other dimensions or other universes. And studying this information is an important step in studying the formation of the universe. Although the reality is beyond human imagination.