When human beings, with the help of science and technology, walk out of the earth and see the vast universe, we will have our future goal, which is the sea of stars. Standing in front of the universe, the earth is too small. If the universe is compared to a living body, then the earth is equivalent to a cell in this living body, which is insignificant.
The vast universe has too many mysterious mysteries, such as the origin of the universe, the origin of life in the universe, why the universe is so regular, and so on. The goal of human struggle is to solve these mysteries one by one. As long as we use the power of science to decipher them one by one, then human beings will become the overlord of the universe, and even a super civilization beyond the universe.
Among the many mysteries of the universe, there are two that scientists most want to figure out. One is the origin of the universe, and the other is the end of the universe. Regarding the origin of the universe, the current mainstream conjecture is the big bang of the singularity. 13.7 billion years ago, a mysterious singularity had a big bang, and the universe was born.
Regarding the Big Bang conjecture, scientists are not making random guesses, but relying on a large amount of long-term observational data. Many phenomena in the universe point to the possibility that the universe may have come from the big bang. Of course, there is not enough definite evidence to prove this view. It is still a mainstream conjecture of the origin of the universe.
As for the ending of the universe, it is difficult for us to say clearly. From a scientific point of view, there are no infinite things in this world. Anything and everything has a beginning and an end. A star has an origin and a lifespan of its own. After the lifespan is reached, it will explode into a supernova and transform into another celestial body.
The planet is also not infinite, it will eventually go to destruction for various reasons and become the dust of the universe. The same is true for galaxies, it is impossible to survive indefinitely, and there are beginnings and ends. Celestial bodies, galaxies, etc., all have lifespans, and when their lifespans are reached, they will also be destroyed. Then, can the universe that carries all this exist indefinitely? Scientists have proposed three conjectures about the ending of the universe. Let us briefly understand them together.
1. The universe will eventually become fragments. We all know that the universe came from a singularity big bang. This singularity has infinite mass, infinitely small volume, and infinite energy accumulation. The original matter of the universe was transformed from the energy generated at the moment of this singularity big bang under an extremely high temperature.
Energy can be transformed into matter, and I believe that friends who have a good understanding of the Einstein mass-energy equation should understand it. Energy and matter are actually the same thing. They are just two manifestations of quality. When the temperature reaches a certain level, matter will exist in the form of energy.
The reason why we can’t see the conversion of energy into matter in the real world is mainly because the current universe does not have that super high temperature. This kind of temperature only appeared once at the moment of the Big Bang. It helps Energy is converted into matter. Let the universe have basic material elements, and then these basic elements undergo continuous evolution, and more material elements appear, and finally various celestial bodies and galaxies are born.
After the Big Bang, the space has not been fixed, but has been continuously accelerating and expanding. It is this kind of expansion that makes the temperature of the universe continue to drop, which is more conducive to the evolution of matter. The universe has expanded for 13.8 billion years, and no one can say exactly how big the universe is now. The current observable universe of mankind is only 93 billion light-years away. We don’t know what the universe is like outside this range.
Can the universe continue to expand? According to scientists’ speculation, this possibility is very small. It is necessary to know that no matter how strong its toughness is, a balloon cannot continue to inflate. After reaching a certain level, it will explode with a bang and become a pile of fragments.
And the ending of the universe may be the same as a balloon. When it expands to a certain extent, it cannot continue. Whether it is the expansion of a balloon or the universe, it needs a kind of energy support. The energy required for balloon expansion is the gas we blow in from outside. The energy required for the expansion of the universe may be dark matter that we do not yet understand.
Dark matter controls the expansion of the universe. Under its action, the universe may expand more rapidly in the future. After reaching its limit, it will burst into a pile of fragments like a balloon, and everything in the universe will no longer exist.
2. There is a cycle of reincarnation in the universe. The universe originated from an infinitely small singularity, which was born through the Big Bang, and then the universe continued to expand. The universe may not expand indefinitely. When it reaches a limit, it may stop expanding and then collapse inward.
As we said earlier, the energy of the expansion of the universe may be the ubiquitous dark energy of the universe, which is equivalent to the gas required for balloon expansion. Dark energy cannot be infinite, and it also has a degree. Just because dark energy cannot be infinite, then it cannot keep the universe expanding. After reaching a certain limit, dark energy cannot continue to support it, and the universe will stop expanding at this time.
Some people may say that after the universe stops expanding, its space will become immobile. Is it really that simple? It may not be so simple. If the dark energy in the cosmic space has been able to maintain a constant state, then the cosmic space can remain motionless after it stops expanding.
But the actual situation is that dark energy comes from dark matter, and dark matter and dark energy also need to be continuously consumed while maintaining the operation of the entire universe. This is the same reason that the fuel of stars needs to continuously consume hydrogen. As the consumption of dark matter and dark energy decreases, there will be less and less energy to maintain the space of the universe.
If the gas in the balloon is constantly consumed and lost, the balloon will keep shrinking. In the same way, the universe will continue to shrink inward as the dark energy is continuously consumed. In the end, it may eventually collapse into a singularity and return to its most primitive state. When the universe collapses and returns to the original singularity, due to the accumulation of too large energy, a big bang will finally occur again, and a new universe will be born.
This conjecture allows us to see that the universe may be a process of continuous reincarnation, and our current universe is the last reincarnation. When this universe disappears, a whole new universe will appear.
3. The universe will continue to expand and eventually split into many universes. I believe many of my friends are aware of the multiverse theory proposed by scientists and believe that the universe is not unique, but has many components. So how did this multiverse form? Scientists have put forward a point of view, that is, a big universe splits up.
We can assume that the universe can expand indefinitely, and when it expands to a certain degree, it will split into infinite small universes. These universes have the same physical rules and the same laws of operation as the big universe, and the small universes that are split will continue to expand and grow, and after reaching a certain level, they will also split into many small universes. In this way, the universe continues to expand and splits to a certain extent, thus forming a multiverse universe.
From the above three conjectures, which one is most likely to be the ending of the universe, no one can give the answer at present. To uncover the answer to this mystery, we can only work hard to develop technology quickly. Only when the strength of science and technology is strong to a certain extent, we have the ability to explore the real mystery behind the universe. And mankind is most looking forward to the end of the universe or the third, because no matter which one of the first two, human civilization cannot continue forever.
Only in the third type, humans may be able to continue to exist. Even if our universe is destroyed by disasters in the future, we can still go to other parallel universes to survive. Of course, ideals are beautiful, but reality is often very cruel. What will happen to the outcome of the universe? What do the friends think? You are welcome to leave a comment below to discuss and express your own opinions and opinions.