What is it really? No one knows since anyone could get in and out to say what's inside. I am faithfully believer to the power and mysteries of the universe, it is a philosophy of life: the Universe is all.
"A black hole is a finite region of space in which there is a mass concentration sufficiently elevated to generate a gravitational field such that no material particle, not even light, can escape it."
Colloquially, let's say it's a portion of the space that generates so much strength that it can attract any cosmic material inside it and not let it escape.
Although this concept is the most accepted nowadays, many scientists have investigated this mystery for many years with thousands of hypothesis and theories. According to Einstein's theory of relativity, a very massive and very compact object would collapse into a black hole.
Black holes get that name because they're invisible. The only way to detect them is to observe the behavior of the gas and the stars that are in the vicinity, as NASA explains. For example, observing the movement of a star, scientists can deduce if there is a black hole in its vicinity, because when a star orbits near these stars, high energy light (such as X-rays) is produced, which scientists can detect From the Earth or from the space.
How do they originate?
Each one of these black holes has a different origin and it is not known how they appeared, but by definition it is considered that the first ones were formed in the beginning of the universe. Some scientists believe that supermassive black holes were formed at the same time as the galaxy in which they are located. It seems that its size is associated with the size and mass of its "mother" Galaxy. So in short, it's still a controversy.
THE UNCERTAIN FATE IF YOU FALL INSIDE...
These are places where the laws of physics we know lose meaning. The moment you entered, reality would be divided into two. In one of them you would be incinerated immediately and in the other you would immerse yourself in the hole, completely unscathed; The more you enter the more curved space will be made, until, in the center, it will become infinitely curved, it is the peculiarity of the phenomenon.
Let us explain in two perspectives:
Suppose you are in space with a friend. You're approaching the hole while your friend is watching you safely outside.
As you enter the event horizon (the point of no return, the limit from which nothing can leave the black hole) Your friend begins to see how you stretch and you contract and the more you see progress, realizes that you move as in slow motion.
Your friend sees as little by little disappear like Ash, due to the stretching of the space, the interruption of the time and fire of the Hawking radiation.
But from your point of view, nothing happens. You sail intact to the most mysterious fate of nature without getting any hits. This is because you are in "freefall" and therefore there is no gravity. Something Einstein called "his happiest thought."
What's inside? We don't know. There are theories that say you could cross a hole and stay in the normally in another dimension. There could be within the different realities, so your friend saw a copy of you being turned into ashes while you, you were really unharmed.
So what?
So we're back where we started: What happens when you fall into a black hole? Do you slide into the interior and live a normal life, thanks to a reality that, oddly, depends on who sees it? Or just get to the horizon of collision events with a deadly firewall? No one knows the answer and has become one of the most controversial issues of fundamental physics.
If the true nature of reality lies hidden somewhere, the best place to look for it is in a black hole.
I SHARE A CURRENT NEWS ISSUED ON THE DAY 16/02/2018
