What role does dark matter play in the universe? After listening to the scientist's explanation, I understand.

The universe originated from the Singularity Big Bang 65.438+038 billion years ago. The newborn universe has no stars, planets and other celestial bodies, only basic elements such as hydrogen and helium. These elements have evolved into richer elements, and the rich elements have evolved, and finally various celestial bodies such as stars, planets and black holes have been born.

Celestial bodies gather together by gravity to form a large number of star systems, which in turn gather by gravity to form larger galaxies, such as the Milky Way and Andromeda galaxies. There is a supermassive black hole in the center of these large galaxies, and the gravitational field of large galaxies is very strong, which can affect farther distances and form stable galaxy clusters.

There will also be gravitational fields between large galaxies. Through gravity, large galaxies will continue to gather to form a larger supercluster, which can form a larger cosmic filamentous structure. The range of this filamentous structure often exceeds hundreds of millions of light years, and a large number of galaxy structures are densely intertwined, forming a huge cosmic network.

If we shrink the universe to a certain extent, you will find that the universe is a huge network structure, in which there are more than 2 trillion large galaxies. This is the universe we can see, in which gravity is the core thing. If the universe is only visible matter and the universe we can see, it would be too simple.

In the continuous research and exploration of the universe, scientists have found that visible matter is not the whole universe, and the visible universe is not the whole universe. There is an invisible universe behind the visible universe. Matter can be divided into visible matter and invisible matter, and invisible matter is the dark matter that scientists have been exploring and looking for.

I believe many friends know about dark matter. Although we still don't know what its essence is, and we haven't really collected any dark matter, we can determine the existence of dark matter through various mysterious phenomena in the universe. And the amount of dark matter in the universe is very large. According to current research, scientists believe that dark matter accounts for about 26% of the matter in the universe, which is more than twice that of visible matter.

You know, visible matter only accounts for about 5% of the universe, and visible matter constitutes our visible universe. So, does dark matter accounting for 26% also constitute an invisible dark matter? Scientists believe that the same is true for high probability. With so much dark matter, it must have played a great role in the universe. What role does dark matter play in the universe?

Scientists believe that the existence of dark matter may construct the overall framework of the universe, which is equivalent to the bone structure in human body. With the skeleton structure, the whole human body is necessary to exist. So is the universe. From the day it was born, dark matter quietly constructed the framework of the whole universe. All galaxies and matter have a stable framework in order to evolve well.

As we said before, we can see that gravity plays an important role in the universe. Through gravity, a complex and alternating cosmic network is established between galaxies. But let's not forget that if celestial bodies and galaxies are getting closer and closer through gravity, then the final result is that the whole galaxy will fall apart. Heaven will continue to gather towards the center and condense into one. If so, a perfect universe cannot be formed.

At this time, dark matter quietly plays a role in the background. It constantly coordinates the relationship between galaxies and gravity. With the harmony of a large number of dark matter, galaxies can operate in balance and exist for a long time. Where there is matter, there will naturally be energy. Matter and energy are essentially the same, and they can be transformed into each other.

Visible matter forms visible energy in our real universe. Similarly, dark matter also corresponds to dark energy, which plays a greater role in the universe in a sense. According to scientists, dark matter accounts for about 68.3% of the mass energy of the whole universe, which is about three times larger than the total amount of dark matter.

It can be seen that dark energy is the most mysterious and powerful force behind the universe, so what role does dark energy play in the universe? As we said before, dark matter constructs the framework of the universe and constantly harmonizes galaxies and gravity. And dark energy dominates the direction of the whole universe. As many friends know, the whole universe has been expanding rapidly since BIGBANG.

According to the scientists' observation, the farther away the celestial bodies and galaxies are from us, the more obvious the outward trend and the faster the speed, which is the phenomenon of celestial redshift in astronomy. The phenomenon of celestial redshift is favorable evidence that the universe is expanding. In the field of vision of astronomical telescope, the farther away galaxies are from us, the faster they are.

We can hardly see the galaxies in the early universe now, because they are farther away from us than the speed of light. So why does the universe keep expanding? Why do galaxies keep moving away from each other? Behind all this is a mysterious and powerful force, which is dark energy.

The function of gravity is to keep pulling inward, while the function of dark energy is to keep expanding and expanding outward. Obviously, the contest between dark energy and gravity prevailed, and finally the whole universe expanded rapidly. And this expansion is also an evolutionary direction of the health of the universe, because only by continuous expansion can the universe have unlimited possibilities.

Dark energy is the overlord of the present universe. How the future universe evolves and what the final outcome will be depends largely on dark energy. So dark energy is invincible? Not exactly. Many people often wonder: Will the universe keep expanding? Scientists believe that the universe has a high probability of not expanding all the time.

Now dark energy is pulling the universe to expand rapidly, but with the continuous expansion of the universe and the continuous consumption of dark matter and dark energy, it will be insufficient one day. At that time, the universe also expanded to the extreme. When the universe stops expanding, it doesn't mean that it will keep a fixed size. Because in the visible universe, there is another overlord, and that is gravity.

Gravity is eternal, it will not disappear, because it is quality that determines gravity. As long as there are celestial bodies and galaxies in the universe, mass exists and gravity exists. When dark energy is weakening and the expansion of the universe cannot be maintained, gravity will prevail and then pull the universe inward to collapse.

Gravity may eventually bring the universe back to the singularity. It can be seen that dark energy plays a major role in the ultimate fate of the universe, and the universe can last as long as dark energy can last. Of course, at present we only know the skin of the universe, and there are too many mysteries waiting for us to solve.

Dark matter and dark energy may be related to the ultimate mystery of the universe. Only by truly uncovering their mystery can we finally uncover the mystery of the universe. Perhaps after human beings have mastered dark matter and dark energy, we will be the strongest super civilization in the universe. At that time, the whole universe will be the back garden of mankind, and we are looking forward to this day.