How long will the Earth live? How long can the Earth live in the world?

The question is a bit more complicated, do you mean the lifespan of the earth? I know that the current age of the earth is about 5.6 billion years, and the sun can give us about 5 billion years of sunlight, and then the sun slowly darkens, but the sun gradually increases every year, and the temperature continues to increase every 100 years, which means that the number of years that can give us human beings to live is about 2 billion years, as for how long can the earth survive? If it weren't for the earth itself ** or the planets colliding, the time that could give us human beings to live would be 2 billion years, but it doesn't mean that nothing else will happen in 2 billion years, you know?

I don't know how to ask, I understand, it's hard to type on my phone, I don't have a score, thank you.

About 5.5 billion years old. But no one can be sure!

Even if the earth dies tomorrow, there will only be a small number of people alive who will not know, and even if someone knows that someone will not let the news spread. You can't verify it yourself, you think too much!!

There must be hundreds of millions of years left. There is no hurry.

Depends on the activity and longevity of the sun!

You don't see it die until you die.

Let's see how long humanity will be destroyed.

People are worried, what can they do if they know.

You can check out the information!

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.