How long will the Earth live? As the title suggests, thank you

It is not yet available at the current level of science. However, it is known that the current age of the Earth is 4.6 billion years. The earth belongs to the solar system, and its fate is of course closely related to the sun, and once the sun is destroyed, the earth will of course have nowhere to live.

The reason why the sun can heat up is because of the thermonuclear reaction inside it, which consumes a lot of the sun's substance, and as the sun ages, it will also consume its own heat and eventually die, and then the earth will be gone. However, the sun is still only in middle age, and it is still billions of years away from destruction. Of course, there are many other factors that affect the safety of the Earth, like other interstellar objects will hit the Earth, but this is unlikely, and we can also use ** to destroy them before they hit the Earth.

Finally, human behavior is also important, the development of modern nuclear **, as well as environmental problems, will pose a threat to the earth, which in turn will affect the life of the earth. How long does the Earth live? I have thought about this question countless times, how long can our blue planet be blue, as we all know, the earth's resources are limited, coupled with the wanton destruction and pollution of human beings, our industry has developed, and the environmental problems that come with it are getting more and more serious, how long can our blue planet be supported?

According to research, the current lifespan of the earth is 4.6 billion years old, and how long it will last in the future remains to be studied by scientists. Scientists say that if the Earth can maintain its revolution and rotation, it will exist forever, but if external factors affect her, his life will also come to an end. The heat source on the earth, the light source is from the sun, the sun gives us light and warmth, according to research, the sun's energy is limited, one day it will be released, at that time, there is no light on the earth, there is no warmth, plants can not photosynthesize, there is no suitable temperature, life can not survive, and the earth will also perish.

In addition, the universe is in motion, so any planet will be able to deviate from its orbit and hit the earth, and it is terrible for a comet to hit the earth, and the region may be shattered by it, and the earth will come to the end of its life. Exactly how long the Earth lives is still a mystery. Happy to you.

5 Billion Years The life span of the Earth itself can be considered infinite, but the sun will be annihilated in 5 billion years, which will lead to the destruction of the Earth. Oh.

The current lifespan of the Earth is 4.6 billion years, and it is still unknown how long the Earth will exist in the future. Here are the references. How long is the life span of the earth?

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 in the first place, because it is the closest planet to the earth and can have a destiny 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 is bound to 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, when physicists learned the mystery of the sun's light, 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 upheaval of 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, although many scientists believe it exists.

Remember to adopt it.

If nothing goes wrong. Exclude other factors. Wait for the sun to turn red giant. Put the whole solar system at all"Swallow"Finish. 5 billion years.

The history of human beings can be traced back millions of years, while the history of the real conquest of nature is only a few thousand years, and the gradual development of human civilization is nearly 2,000 years. So how long can humans live on Earth? Is there an answer now?

It's safe to say that there is an answer now, it's about 1.1 billion years.

According to the research of modern astronomy, the lifespan of stars similar to the size of the sun in the universe is generally about 10 billion years, and the sun has existed for 4.5 billion to 5 billion years. Writing this, many people will say that if there is a sun, there can be human beings, then the earth still has 5 billion years to live. Actually, if you think simply, an elderly person must be completely healthy and free of diseases?

No way. The same goes for the sun. With the depletion of hydrogen, the sun will be more unstable in early old age, when no one can guarantee that the sun will not change suddenly; You must know that many small changes in the sun pose a great threat to human beings, such as sunspot eruptions, solar wind, magnetic storms, and so on.

Therefore, it is accurate to calculate that human beings can still exist under the protection of the sun for about 1.1 billion years.

In 5 billion years, after the sun is completely depleted of hydrogen, the sun will expand first, and the boundary will be close to the earth, and it will completely engulf Mercury and Venus. At this time, the sun is called a red giant, and it is very hot, completely evaporating the water from the earth. Without water, life generally does not exist; Without water, the temperature of the earth is also very high.

The Sun then shrinks into a white dwarf. At this time, the temperature of the sun is very low, and the temperature of the earth will also be close to absolute zero. It is impossible for life to exist.

So, humanity still has 1.1 billion years to find another habitable planet. Such a long time is enough. In a few hundred years, mankind should have deciphered the theory of the nature of physics (i.e., understanding the nature of matter in the world and the laws of interaction between matter).

At that point, traveling in space will be a breeze.

I hope that each of us can contribute our own strength to promote the development of human civilization!

The "lifespan" of the Earth depends on the duration of the sun's nuclear fusion, which is about 5 billion years.

At present, the core of the sun is in a period of hydrogen fusion, and the light pressure and gravity of hydrogen fusion are balanced to maintain the shape of the sun. When the hydrogen in the Sun's core is insufficient to sustain fusion, the light pressure weakens and the Sun collapses toward the center until the pressure is strong enough to ignite helium fusion. Once helium fusion begins, the Sun transforms from a main-sequence star into a red giant, expands outward, and will eventually engulf Earth.

Consider, the remaining amount of hydrogen. The sun can also be stable for 5 billion years. Therefore, the earth will survive for about 5 billion years.