How Does A Star Die ? What happens when a star die ? How does a black hole form ? Facts Frontline

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Hello Guys, Welcome to a new episode of the channel. You must have seen the sun as well as the stars shining in the night sky. Our sun is also a star, but it is so close to us that it is not visible to us in the night but in the day and due to its lack of light at night, we can see the rest of the stars. Seeing those shining stars, we definitely say that how beautiful these stars are looking, but do you know how a star ends? What becomes of a star after its age ends? We often hear the name of neutron star, dwarf star, then what are these stars? Today in this video we will know that what happens to a star after its age is over?
Hello friends, you are watching Facts Frontline KZbin channel, so let's start this video. Friends, before the end of the star, let us know how a star is made after all? Friends, stars are formed from gas and dust particles and both these things are present in nebulae, nebulae are clouds of dust and gas present in space and if there is any movement in these nebulas, then it will be bent in space time. Due to which gas and dust start mixing together and due to gravity, they start joining together and it is very clear from the point of view of chemistry that the temperature of the thing in which the pressure is created also starts increasing. Due to its increase in size for a long time, its gravity and density increase and when its temperature reaches 1 million Kelvin, then a reaction called nuclear fusion starts in which hydrogen starts converting to helium and fire is formed in it. and it takes the form of a star. But just like a person has a limited life and every person dies one day, similarly every star also dies one day or the other. But how do those stars end and in what form they change after the stars, let us know. Friends, there are two conditions for the death of any star. They understand what those conditions are. If a star is like the sun, that is, if its mass is as much as the sun, then those stars end differently and if the mass of the same star is much more than the sun, then it ends differently. In any star, there is a reaction called nuclear fusion, in which the atoms of hydrogen fuse together to form helium, which is larger in size and mass of the star, the more its core gets hotter due to gravity and that star Loses its fuel more quickly. First of all, we know about the end of those stars whose mass is as much as the sun, when the fuel in the core of such stars is exhausted, then the force acting on the outside of that star and the force inside due to gravity I do not know the balance, due to which that star leaves its outer part in the form of planetary nebula and remains the white core of that star which we call white dwarf. These white dwarfs produce very little light because they contain only a small amount of energy, after which these white dwarfs continue to roam all over space, becoming black dwarfs. Similarly, if a star is much larger in size and mass than the sun, then it also starts expanding after a limited time and becomes a red supergiant, but after that there is an explosion in that star which we know as super nova. After this explosion, all the mass and matter of that star starts concentrating at one place and it takes the form of a neutron star. The same if a star is much larger than the sun, about 20 to 30 times, then after being supernova explosive in it, its peas become so much that it takes the form of a black hole and we call the black hole in this space. It is considered the most dangerous demon of the world because the black hole has so much gravity and its density is also so high that even light cannot pass through it, due to which we do not see it in space. So friends, these were the conditions by which a star ends.
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