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Human beings are forever exploring the origin, development and end of the universe, and although the word "universe" is the highest level of human generalization of the universe, human beings know very little about the universe, so there are different opinions about the ultimate fate of the universe.
The development of the universe proceeds at an extremely slow pace, so what is the grand event of the end of the universe, and how should we describe the end of the universe?
But the future of the universe, we can still have a variety of possibilities.
The extinguishing of stars is only one possible fate of the universe.
1. The origin of the universe.
The Big Bang was the beginning of the birth of the universe.
Just as the creatures on the earth evolved because of hundreds of millions of years, and the evolution of the universe has also gone through a long time, in the evolution of the universe, the Big Bang is only a stage of the universe, not the beginning of the universe.
The ancient primordial universe did not have the brilliance of stars, nor the formation of galaxies.
At that time, the universe was dominated by hydrogen and a small amount of helium.
As the universe expanded, the nucleus and electrons began to combine to form atoms, that is, atoms such as hydrogen and helium.
At the same time, photons are also released, and these atoms are hit by photons, resulting in the scattering of photons, thus producing the most primitive radiation in the universe.
And this radiation is the earliest microwave background radiation in the universe.
During the long years of the expansion of the primitive universe, the matter in the universe began to gather irregularly together, forming primitive galaxies and interstellar matter.
In about 10,000 years, the first star evolved in the universe.
The appearance of the first star marked the beginning of the formation of the structure of the universe.
However, the birth of stars is inseparable for millions of years, and the birth of stars is also the birth of stars.
Therefore, in the formation of the structure of the universe, the role of stars is weakened, and the beginning of the formation of the structure of the universe is more attributed to the formation of star systems.
Galaxies are formed because of the accumulation of large amounts of gas.
After a large amount of gas came together to form a star system, stars were born.
After the birth of the first star, the star blooms with dazzling brilliance for a certain period of time, and the original hydrogen and helium are nuclear fusion, so that the original hydrogen and helium are released, and light and heat are released.
In the process of nuclear fusion, the star will also fuse the original hydrogen and helium into heavier elements, such as oxygen, carbon and other heavy elements.
When these heavy elements explode, the stars will eject the material of the original star system around them, thus polluting the original star system.
And these heavy elements will also form new star systems in the universe, and at the same time, they will also form planets and other substances.
At the beginning of the birth of the universe, the birth rate of stars was relatively fast, but with the birth of stars, the number of stars will continue to increase, and at the same time, because the speed of expansion of the universe is also increasing, a large amount of gas will no longer gather together, so the birth rate of new stars will become very slow.
The speed at which stars go out is faster than the rate at which stars are born, so as the universe develops, one day at a time, all stars will go out.
However, the extinguishment of stars does not necessarily mean the end of the universe, and these are all possibilities speculated by scientists based on the development history of the universe.
So, what is the fate of the end of the universe?
2. The extinguishing of stars.
The essence of a star in the universe is a giant plasma, and its characteristics are an extremely large plasma.
In the study of the development of the universe by scientists, according to the historical development of the universe, the time when the last star disappeared is also very far away, and this time, in the speculation of scientists, is about tens of thousands to hundreds of millions of years.
In terms of numbers, there are a lot of stars in the universe.
At present, scientists estimate the number of stars in the universe to be about 100 billion based on the detected information, which is huge and unimaginable to mankind.
The essence of stars is composed of substances such as hydrogen and helium, which is actually the matter of the universe itself, and the matter of the universe is mainly composed of atoms composed of substances such as hydrogen and helium, and the matter of star systems is also composed of atoms.
In the interior of the star, with tremendous pressure, the atoms will merge into one, thus forming gas.
As more and more gases come together, and at the same time, with tremendous pressure, the gas will gradually become hotter and hotter, and as the temperature increases, the gas will gradually become hotter, and eventually, the gas will become plasma.
In the presence of plasma, the ionization phenomenon begins to occur, and the existence of ionization phenomenon will make the electrons of the plasma and the nucleus less forced, so that the electrons will be separated, and at the same time, the electrons and the nucleus will also form a state of plasma.
In the presence of plasma, the star becomes a luminous plasma, and in the core, it releases a huge amount of energy through nuclear fusion.
In this process, it is also accompanied by the production of nuclear fusion, and at the same time, it is also accompanied by the release of huge amounts of energy, which is the source of light and heat for stars.
In the process of nuclear fusion, hydrogen and helium are fused to form heavier elements, and at the same time, huge amounts of energy are released, which are the light and heat of the star.
After the star releases light and heat, the temperature gradually increases, and at the same time, the light and heat are gradually transferred through the matter, so that the star is in a state of dynamic equilibrium.
In the process of star evolution, the lifespan of a star is also limited.
The material of the universe is far from being able to support the infinite luminescence of stars, and the lifespan of stars is also limited, as the stars shine, the stars will deplete the energy in the body, and similarly, they will also deplete the matter in the body, so that the stars no longer shine, which is the reason why the stars are extinguished.
3. The fate of the universe.
The extinguishing of stars is also a fate of the universe, but this does not necessarily mean the end of the universe, and this is a possibility that scientists have speculated based on the history of the development of the universe.
Mankind has a variety of hypotheses and theories about the future of the universe.
Hypotheses such as heat death, the Great Tear, and the oscillating universe, all of which are speculations about the possibility of the universe based on the history of the development of the universe, are not necessarily happening.
In the ancient universe, the birth of stars was also very rapid, just like the birth of human beings on the earth, it was completed in just a few billion years.
However, as the number of stars continues to increase, and at the same time, new stars are born, so a large amount of gas is no longer gathered together, so the speed of new stars becomes very slow, so in the development of the universe, the universe has entered the "aging period" of the universe after a short period of adolescence.
In the "aging period" of the universe, new stars are no longer born, but there will still be a small number of stars, and at the same time, there are a large number of stars that have run out of energy and extinguished the light, so in the universe, it has begun to gradually dim, and in trillions of years, finally one day, the last star has extinguished the light, and this is the hypothesis of the heat death universe.
In the hypothesis of the heat death universe, as the last star goes out, the universe begins to enter a dark state, and at the same time, the matter in the universe will gradually dissipate, so that the universe will die completely.
In addition to the hypothesis of the heat death universe, there are also the hypothesis of the Great Tearing Universe and the Oscillating Universe, the hypothesis of the Great Tearing Universe is based on the speculation made by the existence of dark matter and dark energy, the existence of dark matter and dark energy, for the expansion of the universe, has an accelerating effect, so with the development of time, the expansion rate of the universe will become faster and faster, and eventually one day, the expansion rate of the universe will exceed the viscosity of matter, so that the universe will be torn apart.
The oscillating universe of the universe is a speculation made according to the laws of evolution of the universe, and the oscillating universe of the universe is the continuous expansion and contraction of the universe, like a huge spring, constantly oscillating.
Under the action of viscosity, dark matter and dark energy, the universe is constantly expanding and contracting, like a huge spring, constantly oscillating.
epilogue
The future of the universe is unknown, and humanity is still unable to determine the ultimate fate of the universe.
In exploring the ultimate questions of the universe, scientists need to consider factors such as stellar evolution, cosmic expansion, and dark matter to understand the future of the universe more fully.