How come the sun never burns out?

The sun is an interesting phenomenon and will “soon” cease burning, but then continue to give “eternal” heat off.
Below I explain this attitude.

If you’ve ever pumped your bike tire hard (especially with a hand pump) you may have noticed that the bike pump gets hot.If you comprevest a gas it becomes warmer.

The sun is a huge amount of hydrogen gas.And by gravity in an (almost) vacuum, this gas presses together. This makes it warmer.
If gas becomes warmer and not as in a bicycle pump is stuck put it out.
What you see at the large cloud of hydrogen gas in a vacuum is a constant inward pressure due to gravity and an outward pressure because of the heat.By gravity, the cloud remains together.

If the cloud of hydrogen gas is large enough, it becomes very hot.Simultaneously, gravity pushes the cloud further into each other. The heat in combination with gravity creates a phenomenon that we call fusion. Two hydrogen atoms merge into a heavier atom. This is deuterium, which consists of a proton (the nucleus of a hydrogen atom) and a neutron. In the process, energy is released and a positron (this can transform a proton into a neutron-I do not go into it).
The energy that is released causes further heating, resulting in a chain reaction.In This chain reaction more and more hydrogen is converted to deuterium, but simultaneously the deuterium is also merged with hydrogen to helium. Energy is also released. The formed helium is a so-called isotope (2 protons and 1 neutron) and further merges to helium. In This process 2 hydrogen atoms are released.
The result is that 6 hydrogen atoms melt into a nucleus of two protons and two neutrons, and also release 2 hydrogen atoms.So effectively only 4 hydrogen atoms are converted to helium, and in this process produces a tremendous amount of energy because in the merger of two deuterium Atoms Gamma energy is released. This is the highest possible (photon) energy that can come freely.
This process creates a huge amount of energy, and because the cloud of hydrogen needed to start this process is very large, this process will continue for a long time.Billions of years.

However, this is not all.Because once the merger is started, this process will continue. Hydrogen is converted to helium via steps, but also helium is merged into other elements. Here, the separation of secondary education comes in handy, because in it you have had the periodic system. It contains hydrogen and helium at the top of the ends, and heavier elements are lower in the overview. This is done by gravity/content of the atom. We come across elements such as sodium, carbon, phosphorus, sulphur and calcium. All those substances that your body needs.
And in the list is also iron.

If the merger process continues long enough, iron is created.And that’s a problem. Because iron merge, which costs a huge lot of energy, has more than a star. Incidentally, a heavier element will emerge from fusion, but with iron the process stops. And by gravity draws all the merged iron to the middle of the star-the sun.
As more and more hydrogen is transformed into heavier elements, the proportion of iron will increase, and that lasts for billions of years.It is ongoing, but we are not going to experience the result.

In the merger of heavier elements, the amount of energy will continue to increase.Simultaneously, the core of the star becomes increasingly heavier. The consequence of this is that after a very long time the star will expand very strongly. The amount of energy that is released presses the outside from the core, but Gravity keeps the star together. In a star like the sun, it will eventually swallowed up the Earth, but other stars that expand are much bigger.
In the winter night you can see the star Betelgeuse, this star is high in the constellation Orion (recognizable by three bright stars at a glance).Betelgeuse is huge, and has a light red glow. This star is so big that the sun in comparison is a pin button if Betelgeuse is as big as a basketball (just as quickly out of my head, maybe a small skippyball is coming in more near). Betelgeuse is an expanded star at the end of a star’s life.

Back to the Sun.The sun gets bigger and bigger and more and more elements eventually merge to iron. And at some point this process stops because there is not enough hydrogen in the core. The energy that expresses outward-the heat-is no longer able to overcome gravity and all elements “fall” inward. A lot of energy is released. The sun will turn off again, now because of helium fusion. When this process comes to an end, large part of the mass of the sun is repelled by shock waves, resulting in a mist and eventually a small star-a so-called white dwarf-remains. This is a very small and very heavy star without fusion, but it is (relatively) hot. This star can still exist for thousands of billions of years.

A star like Betelgeuse has another ending.
This star is so large and massive that if the fusion process is holding up the result is a very fast contraction of the mass. This results in what we call a supernova, a huge explosion due to the amount of energy that is released by the contraction (think of the bicycle pump).
The result of this contraction is a very dense (small and super-heavy) object, where it is suspected that this will be a neutron star.Another possibility is that the remainder of Betelgeuse will be a “black hole”, an object so massive that the space becomes so distorted that even light cannot escape from it.

Both a white dwarf-the end of our sun-as a neutron star or black hole have a lifespan that exceeds our comprehension.
This allows me to finish:

The sun will “soon” cease burning as the Sun now fires (merger).Don’t worry, that’s another few billion years. And when the sun is lit, the result will be a hot mass that will emit heat for much longer, but no more from fusion. And where a few billion years are not to be included, the lifespan of a white dwarf is vastly longer.
And that is why we can say that even though the sun has an end, it will also burn “forever”, although this eventually also has an end.There will be no man to do that with it.

That is going to burn out.The hydrogen in the nucleus of the sun is estimated to be about鈩?N 5 billion years. So We still have some. But for that time, we really must have found a home on a planet in another galaxy, otherwise the end is humanity.

The sun is going to burn out once but that’s about millions of years

The sun will burn out within a few milliard years when the core reactions cease.Before that happens the size of the sun will increase enormously, the sun will swell, and if the earth is still at the same distance from the sun, all life will be destroyed there.

Does not have a stressful job.Just hang out in the Helal and be themselves. Always the Sun. No, it doesn’t get burnout.

The sun will burn out once but in a few billion years.I dare not think about it.

Everything comes to an end…:-)

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