Will the Earth die if it lives to be 10 billion years old?

How long does the Earth live?How long the Earth will exist in the future is still unknown. The Earth is presumed 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 first of all the sun, 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 interference of the sun on 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 turns to the closest place to the Sun every 26 million years"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 comets that collide 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 in its existence.

The sun will be ** in 5 billion years. The earth can still be in?!

The earth doesn't exist that long.

More than 4.5 billion years ago, the rocky planet, Earth, was originally just a speck of dust floating in space, which originated from the size of a huge ancient star at the end of its life.

The earth can also be divided into 5 since its formation"generations", from ancient times to the present: Archean, Proterozoic, Paleozoic, Mesozoic.

4.6 billion years.

Earth is one of the eight planets in the solar system (Pluto was classified as a dwarf planet in 2006 because its trajectory is different from the other eight planets), and it is the third planet in order of closest to the sun. It has a natural satellite, the Moon, and the two form a celestial system, the Earth-Moon System.

Earth, as a planet, originated from the primordial solar nebula 4.6 billion years ago. The Earth interacts with other celestial bodies in outer space, including the Sun and the Moon.

The Earth is home to millions of creatures, including humans, and is the only celestial body in the universe where life is known. The radius of the Earth's equator is kilometers, the polar radius is kilometers, the average radius is about 6,371 kilometers, the circumference of the equator is about 40,076 kilometers, 71% of the earth is ocean, 29% is land, so the earth is blue in space.

Earth is the only planet where humans live among the planets discovered so far.

The huge dinosaur family did not escape the natural disaster and went to extinction, but there is a creature on the earth that escaped the terrible dinosaur extinction period and has continued to the present, it can be said that this biological family has been living on the earth for nearly 600 million years.

The time when the Earth accumulated from the primordial solar nebula to form a planet to the present. The current best estimate of the Earth's age is 100 million years, and what is commonly referred to as the Earth's age is its astronomical age. The astronomical age of the Earth refers to the time when the Earth began to form to the present, which is closely related to the hypothesis of the origin of the Earth.

The geological age of the Earth refers to the time from the beginning of geological processes on the Earth to the present. It is estimated that hundreds of millions of years have passed since the formation of the primitive Earth and has evolved into a layered Earth, so the geological age of the Earth is less than its astronomical age.

It's not a single number.