In stars which are closing the end of their lifetime, the nuclear reactions in the center becomes unable to balance the gravitational force, which is why the whole mass of the star is pulled to the center. After a while, all the mass is accumulated in one point and everything, even light, is sucked into this structure because there is an incredible increase in density.
What Is The Evidence For The Existence Of Black Holes?
The answer is simple; because of their impact on the neighbouring matter. For example, there are revolving stars in the universe, as in double star systems. In these systems, one of the stars’ movements can be observed, whereas the other is unobservable. The reason for this is because the other star doesn’t exist anymore, which means it turned into a black hole.
And that’s not it. While the black hole sucks in matter, the disc-shaped gas clouds around it start to glow and radiate because of the high speed. So we can see a very bright layer of gas cloud surrounding a dark center when we observe this phase from outside.
The Discovery Of The First Black Hole
The celestial body called Cygnus X-1 is the first discovered black hole. 1964 was the first time we learned about its existence and we didn’t know until the researches conducted between 1971-2972 that this body is a black hole. Thought to have come into existence 6 million years ago and being located 6000 lightyears far from us, CYG X-1 is still among the fastest revolving black holes that we know.
Can The Sun Turn Into A Black Hole In The Future?
No. The stars with the mass of the Sun don’t have high inner pressure or mass, which enables them to stop the gravitational force. If we were to give an example from our system’s Sun, it will stop collapsing when it reaches about the same size as the Earth.
If you ask at least how much a star’s mass should be so that it collapses until it becomes a black hole, the answer is: at least 15-25 times of the mass of the Sun. In this case the inner pressure of the star will not be able to stop the collapse of such a large mass and the star will gradually turn into a black hole.
What Happens To A Person If They Are Sucked In A Black Hole? Can They Live?
Unfortunately, no. English astrophysicist Sir Martin Rees has coined a very nice term for that which happens to a person sucked into a black hole: Spaghettification.
In the case of spaghettification, whichever side of you is the closest to the black hole is subject to the gravity force most, so your body is stretched and torn apart; until you are divided into your smallest particles, which is subatomic particles, and you turn into a thin line. Probably not the most pleasant experience.
You don’t have a chance of survival, but you can avoid turning into a spaghetti. However, you have to find a gigantic black hole in order to do this. In fact, this black hole has to be so big that the size of it should be almost the same as our Solar system. In that case you can enjoy your ride until you are sucked into the core of the black hole, the singularity.
Can Black Holes Connect To Other Universes?
There is only one answer to this question: Why not? This is maybe the most interesting idea about black holes. We cannot prove it wrong or right yet. It is even possible that our universe is a black hole inside another universe or a dimension.
Of course, these are very remote possibilities. If we are to talk about less remote possibilities, black holes can be doors that open to other points in our universe (as you see, even less remote possibilities are actually incredibly remote). The other point of a black hole is called a white hole, but the existence of them is yet to be proved.
What Is The Largest Black Hole?
A Black Hole called S5 0014+813 is the black hole with the highest mass we have discovered so far in our universe. Its mass is thought to be 40 million times of that of the Sun. For comparison, the black hole Sagittarius A*, which is a supermass black hole in the center of our galaxy, has 4 million times the mass of the Sun.