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The universe is currently in an expanding phase. There are three possible modes of development of the universe, and there is little difference in the early stage of the universe's development, and different results will occur in the later stages of evolution. It is not yet possible to determine what kind of system the universe is.
Open Universe: The universe expands after it grows, and the expansion force of expansion is much greater than the gravitational force, and the universe will expand endlessly. The continuous expansion of the universe leads to an infinite increase in the entropy of disorder, the universe develops to the most chaotic state, all celestial bodies decompose, and only photons and leptons are left in the universe, entering a state of heat death.
Balancing the Universe: The expansion force of the expansion is about the same as the gravitational force, so the expansion will be slower and slower, and finally expand at an extremely slow rate.
Closing the universe: The universe expands after it is large, and the expansion force of expansion cannot compete with the gravitational force, so when it reaches a certain level, the expansion tends to stop, and thus begins to shrink in the opposite direction of expansion. Finally, the universe collapsed into a singularity after the Great Squeeze.
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Eventually!! But 2012 is not the end of the world!! Experts say that everything is just the movement of the earth's crust, not the end of the world, and don't worry about it!!
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848231789 What do you answer?
The universe is supposed to disappear eventually, and it may become another substance.
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You'll see if you're going to die....The universe is only a few hundred million times magnified.
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If the universe is really destroyed, it will only be in a different form of existence.
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The universe is in a continuous cycle, where there is life and death, and after death, there is rebirth.
It's a unified concept of nature and it's okay.
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The universe is a unity of space, time, matter, and energy. The universe is the synthesis of all space and time. The four directions are said to be the universe, and the universe is said to be the sky throughout the ages. (Definition of the Universe).
Therefore, the universe is eternal, even if it is bigger, the universe is still the universe, just sneezing.
What 2012, what the end of the world. That's a Western legend, it's not about China, it's not about the universe, so go to sleep.
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The ultimate destiny of all things is death. Even the universe is no exception. 100 billion years from now, the existence of the universe is unknown.
If the universe does not exist, human beings naturally do not exist. Living in humans depends on the sun. After the sun disappeared, the people living on the earth lost their heat and energy** and soon disappeared.
The Sun as a star actually has a lifespan. According to calculations, the life span of the sun has reached 10 billion years, but it has been 5 billion years since the birth of the sun, so if humans do not leave the sun for 5 billion years and do not look for a place to live outside the solar system, they will sit and wait. Less than 100 billion years ago.
At the end of its life, the sun will expand dramatically, and its diameter will expand more than 100 times that of its current size, when the earth will be swallowed up by the sun and will be wiped out. The closest star to the Sun is Centauri, and the distance from the Sun is light-years, but this is a large distance. At least for humanity now, it's a distant distance that can't be expected.
It takes at least tens of thousands of years to fly to a neighbor star, but the lifespan of a human is only a hundred years. This is when the insignificance of human power is exposed. Two research teams, Schmidt and Adam Rees, found that the universe is expanding not as slowly or stagnant as expected, but rather accelerating.
To explain this confusion, astronomers have introduced the concept of "". This unknown form of energy can defy gravity and accelerate the universe. "Unless the dark energy suddenly disappears, the universe will expand faster and faster, and eventually die.
Schmidt said. In 100 billion years, if humans still exist, they will be even more lonely than they are now. "By then, ours will still exist and will merge with some of the neighboring ones, but today we can see all the other cosmic objects that we are too far away to observe.
That is, all galaxies will disappear except for the one we are in. Schmidt said. Schmidt said this about the dark energy that drives the accelerating expansion of the universe.
We don't know how dark energy is formed. It seems to be part of the structure of the universe itself. Dark energy produces more cosmic space, more cosmic space produces more dark energy, and more dark energy produces more chaotic cosmic space.
The universe is scattered because of it.
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At this time, human civilization should have been very developed, and perhaps it could already live on other planets.
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No, at least it won't be destroyed while you're still alive. As for the future, that's unknown.
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At first, a large amount of gas (mostly hydrogen) is attracted by its own gravity and collapses into a star, and when it collapses, the gas atoms collide more and more frequently (and at higher speeds), making the gas hotter and higher, and the molecular thermal motion intensifies, and the hydrogen atoms collide at extremely high speeds, so that when they collide, they do not bounce off but converge to form helium. Like the hydrogen bomb**, it releases a lot of heat, and the extremely high temperature increases the pressure of the gas to reach the equilibrium point with gravity (that is, it is neither affected by gravity and continues to collapse, nor expands outward due to air pressure), however, with the consumption of fuel, the heat that can be provided is less and less, and gradually it cannot resist gravity, so the star begins to continue to collapse (don't think that the more initial fuel of the star, the longer it will live, because the greater the mass of the star, the greater the gravitational force, the more heat required to fight gravity, the faster it will be consumed, Our sun can live for another 5 billion years, and some big stars can consume the same amount of heat in 100 million years). If the mass of a star is less than the Chandrasekhar limit (such as the Sun, the Chandrasekhar limit is one and a half times the mass of the Sun, below the Chandrasekhar limit it will not collapse into a black hole, and if it is exceeded, it will. >>>More
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