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The earth is bound to perish.
It is unpredictable how it will perish.
The sun burns and expands to engulf the earth.
Other astral impacts.
It's also possible to be eaten by a black hole, as you say.
It is not impossible to be destroyed by humans or other species.
Even if none of this happens. The earth itself is constantly decaying. Eventually, everything will disappear.
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According to scientists, there are two factors that lead to the destruction of the earth: one factor is the change of the temperature of the sun, because the change of the temperature of the sun will change the gravitational force of the sun's magnetic field, if the gravitational force of the magnetic field becomes larger, the earth may collide with the sun and be destroyed, if the gravitational force of the sun's magnetic field becomes smaller, the earth may go to the east and west with the sun, and the moon will also leave the earth and be destroyed; Another factor is that other huge planets invade the solar system, disrupting the gravitational balance of the solar system and causing the destruction of the planet. But that's 5 billion years from now, and even more so away.
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Don't worry, by then we'll be living on other planets, and the Earth will be uninhabitable at the end of the sun's life, and black holes won't eat the Earth.
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When did the earth perish, and all things developed regularly, flourished, and declined, and what stage of its existence is the current earth in? The climate is warming, the icebergs are melting, the air is polluted, and there is a shortage of energy, and the earth is no longer a happy land, just like a sick old man, in addition to this, he has to bear the threat of the outer universe and celestial bodies at all times, and now human beings are doing all kinds of work, saying that it is for.
25k 2005-10-30 - Snapshot.
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First of all, it is necessary to say that everything that comes into being will perish, but the form of its demise is impossible for us to know for the time being
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How long can life last on Earth? What causes the entire planet to perish?
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y there !! It will definitely go on like this!
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Anything is possible! It's just a matter of time or night! ~
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The Earth is speculated to have survived for 4.6 billion years, but how long will it live?
Scientists believe that if the Earth is allowed to move freely, it may exist forever, but if other external factors interfere with it, the Earth may have an end of life.
The external factor is the sun first, because it is the closest planet to the earth and can be the planet that can be destined on the right earth That is to say, all the energy and power on the earth come from the sun, and once the sun has three long and two short, it will inevitably affect the earth. Before the 30s of this century, people always thought that the sun would one day burn out, turn from white to orange and then to red, and finally become a dark star that was silent, but its brilliant life. In the 30s of this century, when physicists learned the mystery of the sun's luminescence, the situation was very different.
It turns out that the Sun's energy comes from its thermonuclear reactions, and the Sun's lifetime will pass through the gravitational contraction phase, the main-sequence star phase, the red giant phase, and the compact star phase. The main sequence phase is the period of stability of the Sun. This phase will last for 10 billion years.
At present, the sun is only halfway through and is in middle age. Once the Sun reaches the red giant stage, then the end of the Earth is coming. Of course, this is billions of years away.
Are there any other factors besides the sun's interference with the earth? Some scientists believe that the Sun may have a brother, a companion star of the Sun, which orbits the Sun day and night, and every 26 million years, turns to the closest place to the Sun"Make waves"Its strong gravitational pull will cause a large disturbance of many comets, and 1 billion comets will be on a rampage in the solar system, and the Earth and other planets will become these comets"Target"。If the mass of the comet that collides with the Earth is large enough, the consequences are unimaginable:
the extinction of light organisms and the drastic changes in ecology; Heavy landslides and earth cracks, the earth"Broken bones"。However, this solar companion star, which could bring misfortune to Earth, has not been discovered, and many scientists believe that it exists.
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How much silver will the earth still be in a big town, and it will perish for a long time?
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Hawking's research** is nearly 200 years away.
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About four or five billion years ago, when the Sun became a red giant and devoured the Earth.
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Excluding the human factor, there are about 5 billion.
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There are still 5 billion years to go.
The oldest rock on Earth is currently 100 million years old, and 4.6 billion is the result of speculation by scientists, but there is currently no direct evidence that the Earth is 4.6 billion years old. The Earth's death should have been when the Sun entered the Red Giant state (currently the main-sequence star), overwhelmed by the brilliance of the rapidly expanding Sun, and Venus, Mercury, which was closer to the Sun, was already on the Sun's plate at that time. Some scientists believe that perhaps the Earth will not become part of the Sun, but most of the Earth's matter will also be vaporized by high temperatures, and the Earth's size will shrink.
After that, the sun will enter a hail with a constant change in volume (expanding, shrinking, expanding, shrinking......) of the variable star in an unstable state. During this time, the Sun will throw most of the material away from itself, and the Earth and other planets that may have survived will be blown away from their original orbit by streams of solar vomit. Because the Sun is not large enough, its own fuel cannot support the continuation of nuclear fusion, so the Sun cannot continue to grow, and therefore there will be no subsequent supernovas** on the Sun.
Eventually, the Sun will shrink and cool down after all the hot and hot matter has been thrown away from itself, leaving behind a cold core A small white dwarf star that is not much different in size from the current Earth, and the Sun's brilliance will dissipate forever. The whole process is estimated to last more than 5 billion years.
In the end, the earth was either eaten by the sun, or it was lonely and drifted into the barren cosmic space. The chances of being caught by other stars are too low.
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How much more will the earth perish? The old rule.
There should be many people who have watched "Rise of the Planet of the Apes", in the movie, the orangutan has a high intelligence of humans, and will make infected humans gradually lose their consciousness of being humans, and the same social class as humans will appear, while humans will lose their dominance and become the same as ordinary animals. But evolution will not develop backwards, even if humans are replaced, it should be those creatures with strong survival ability, such as cockroaches, imagine if the earth is full of cockroaches and bacteria and the like, it is disgusting to death, or the earth is covered by the ocean, occupied by those creatures in the deep sea. <>
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At present, the maximum size of our universe is about 1500 160 billion light years, and it continues to expand. >>>More
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According to Einstein's special theory of relativity.
Regarding the time dilation formula, when the speed reaches the speed of light, the person in the light-speed spaceship will not feel the passage of time, time will stop, whether it is a day or a year or a hundred years, it is an instantaneous thing, there is no sense of time passing. And the people on the earth saw the light-speed spacecraft leave, and it took a day to return to the original place, that is, one day, this spacecraft flew a light sky, if you ignore the process of speeding up and decelerating, completely calculated according to the speed of light, this light sky flew a total of 25.9 billion kilometers. But the people in the spaceship seemed to be only a matter of moments. >>>More