The universe is not eternal. How many possible endings have it?Various statements point to the same end

The universe is not eternal. This is a very unacceptable statement, because ending and dying is the most fearful.

This is as if life will eventually die, people are unable to stop but have to admit this fact, so they imagine the reincarnation reincarnation from my comfort. Although there is no evidence, if anyone dares to question, it will inevitably be opposed. Because questioning the reincarnation reincarnation is equivalent to killing people's hope for "eternal life". Similarly, if the universe is not eternal, then reincarnation reincarnation is meaningless, so this is destined to be an unacceptable statement. In Newton, people believe that the universe is static and eternal, but with the general theory of relativity, the problem becomes a bit different. People start to realize that the universe is not static, nor eternal.

The universe is not eternal. This is not only difficult for ordinary people to accept it, but even Einstein, the proposed of general relativity, is unwilling to believe it.

For a long time, Einstein has tried to revise his formula and try to add a so -called universe constant to his equation. There is only one purpose of doing this, which is to hope that the final solution of the general theory formula hopes It can be in line with the static eternal universe in the New era, but Einstein fails. In the end, he accepted the conclusions that many scientists obtained on the basis of general relativity: the universe is not static, nor eternal. There is a beginning of the universe. This start is the puppet of the Big Bang. Although it is a hypothesis, it is by far the most sufficient and most recognized cosmic origin doctrine. Now all research on the universe is basically based on this basis of.

The Big Bang produced the universe, and the universe began to expand. 13.8 billion years have passed. The expansion of the universe has never stopped.

The expansion of the universe is the swelling of the space itself. It happens at every point in the universe. We can imagine the universe as a balloon and a lot of small points on the above point. The distance between the points began to get away gradually, which is the swelling of the space itself. The universe is swollen, will it keep swelling? What will its final ending? The final ending of the universe is closely related to the shape of the universe. It is generally believed that the universe may have three different shapes. The first view is that the universe is closed, which is also a more easy to accept.

The closed universe is like a ball, limited and unbounded.

Because the universe is closed, the expansion of the universe will gradually weaken due to the gravity effect of the internal material, and the ultimate expansion will stop. The universe will start to change from expansion to contraction under the action of gravity. The collapse is a point with infinite density and unlimited volume, which is a strange point. After a long time, the balance of this strange point will be broken because of certain unknown factors, so the Big Bang occurred, and a new universe was born again. The second view is that the universe is not closed, but flat. The flat universe is like a plane, which is constantly expanding makes this plane grow larger and larger, but the expansion will not continue endlessly, and its speed will gradually weaken.

As the expansion speed weakens, the flat universe will eventually stop, but before that, everything in the universe will be balanced.

We know that there are various material forms in the universe, but all material is essentially composed of basic particles. Over time, all the stars in the universe will eventually be exhausted. They will collapse and then cool. Of course, large -quality stars will collapse into black holes, but black holes will gradually evaporate due to Hawking radiation. Although this process will be It is extremely slow, but there is time in the universe. Slowly, the universe became colder and cold, and the temperature finally reached an absolute zero. At the same time, due to the continuous expansion, the substances in the universe gradually stayed away, and finally all the substances were torn into the form of basic particles, and a uniform distribution was achieved under the action of space expansion.

The universe eventually reached an absolutely balanced state, and the entropy in the universe increased to the largest, which was the hot silence.

The third view is that the universe is completely open. The open universe is the opposite of the closed universe. It presents a negatively bending state. In this state It continues, so its ending, like the flat universe, is also moving towards the heat. The universe with different shapes has different endings, but it is also good and tightened. Although it seems completely opposite, they all point to the same end point, that is, death. This seems unacceptable, but the closest to the facts. None of the things we have seen so far, none of them can be eternal, so attachment to eternity will only increase trouble. When you start to accept the fact that "death represents the end of everything", you will find that your life will become different, and every minute and every second will be extremely beautiful. This feeling is a bit fearless after learning that he is suffering from the illness.

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