Why did the Earth, which weighs 60 trillion tons, never fall into the depths of the universe?

Because the earth is affected by the gravitational pull of the sun, the mass of the sun is particularly large, and its gravitational force is also very large, so the earth can be suspended in the universe without falling. Friends who have learned about the universe must know the vastness of the universe and the countless asteroids contained in the universe, but many people can't understand the reason why the earth can be suspended in the universe without falling.

On Earth, there is a common intuition for humans. Everything falls to the ground, like apples always fall from trees? In that case, why doesn't the earth fall downward?

In 1968, the astronauts of Apollo 8 once took a picture of the Earth in orbit around the moon. In this **. We can clearly see that the Earth is floating in space.

However, I don't know if you have ever thought about it, why on the earth, everything falls, and the celestial bodies in the universe, including the earth, are floating in the universe.

You know, the earth is six billion billion tons, and the mass of the earth is several orders of magnitude higher than the weight of all human beings combined. He's supposed to fall too. According to Newton's first law, the reason for changing the state of motion of an object vertically, if there is no force or the net force is zero, the object either maintains a uniform linear motion.

Either stay still. So we can come to the conclusion that objects on Earth fall mainly because of the action of forces. This force is the resultant force of the gravitational force conjunct energy, and we also call this resultant force the gravitational force.

The direction of gravity is just vertically downward, so the downward direction in the fall is essentially the direction of gravity, so let's look at the dynamics of the earth. The Earth is attracted by the gravitational pull of the Sun, which is so massive that it occupies one-third of the total mass of the entire solar system. So the gravitational pull of the sun is very large, and the main force of the earth comes from the sun.

And because the earth has an output velocity, the earth can move around the sun, which is equivalent to the sun's moons. The relationship between the earth and the sun is the same as the relationship between the cannonballs and the earth in Newton's cannon.

Therefore. The Earth is not falling down, firstly, because the Earth is subject to the outward gravitational pull of the Sun, and secondly, it has an exit velocity. So, under the external gravitational pull, it began to revolve around the sun.

If the Earth's velocity suddenly becomes zero, the Earth will eventually fall into the Sun, just like any other Earth object. So, for the Earth, the lower part of the Earth is towards the Sun. Newtonian mechanics is very accurate in explaining the movement of celestial bodies, but if the gravitational force is particularly large, the error of the external law of gravitational force will be relatively large.

Einstein later made up for this shortcoming by proposing the general theory of relativity to explain the phenomenon of gravity, and this Einstein believed that gravity did not exist. The essence of the gravitational phenomenon is the curvature of space-time, so the earth is running against the ground of space-time, floating in space, and it is leaving. Obviously, this is in accordance with Newton's first law, but from the perspective of three-dimensional space, the earth is moving in a circle.

Because the earth has gravitational force, gravitational force can keep the earth from falling downward, so it does not fall into the depths of the universe.

The reason why the earth, which weighs 60 trillion tons, has never fallen into the depths of the universe is because the earth is affected by the gravitational pull of the sun, and as long as the sun will not be destroyed and destroyed, then the earth will not fall into the depths of the universe.

It may be that because gravity is maintained between the Earth and other planets, it does not fall into the depths of the universe.

Because there is no gravity in the universe, and there is no gravity in the universe, it will not fall into the depths of the universe.

The Earth has a gravitational pull, plus the Earth is also affected by the geomagnetic field, and then every star and every planet will orbit in orbit.

<> stand on Earth and watch the sun float in the sky, as does the moon. Astronauts take a spacecraft in space** The earth is also the earth floating in the air, in the vast universe of our human homeland, the earth, the sun, the moon and other planets are around the satellite rotation, it feels very magical, each has its own orbit, does not interfere with each other, is floating in the air, will not fall. This is the law of nature, unless it is damaged by human or other disturbances and has a huge impact that changes the mass of a part of a planet.

To put it simply, every celestial body in the heavens, that is, in the universe, is not suspended in the air, but under the framework of two or more force systems, a relative balance in motion, is the result of the control of multiple force systems, what we see is only a result, is a small fragment in the process of cosmic motion, there are many unbalanced celestial bodies, most of them are merged with each other.

The balance we see is also temporary and will change over time. Any matter is moving in the universe all the time, and the absorption of matter makes the loose matter slowly "converge" together with the matter near itself, which is the fundamental reason for the "suspension" of celestial bodies. Let's analyze this question, why the earth can be suspended in space is not only the earth can be suspended, but the entire solar system, the milky way and other galaxies in space are what you call suspended in space.

There is no difference between the upper and lower sides and the left and right sides in the vacuum of the sky, so the forces on the Earth and other planets are equal in all directions. To zoom in a little more, there is actually another force, for example, the moon is subject to the gravitational pull of the earth, and the earth is subject to the gravitational pull of the sun, and the sun is subject to the gravitational pull of the larger galaxy and has been making one revolution. In the process of this revolution, the galaxies are constantly rotating with each other, and perhaps it is this most central force that causes all galaxies to rotate"Suspension"bar.

Because the earth has a gravitational pull, the gravitational pull of the earth will support the earth to be suspended in space, so that it will not fall into the abyss of the universe.

Because the earth revolves around the sun, there is a certain gravitational force between them, and the universe belongs to a vacuum environment, and there is no other gravity.

The main reason is that there is no gravity in the universe, and we have no gravity in the universe, so the earth can be suspended in space no matter how many tons it weighs.

Because the gravity of the earth is relatively large, and then the earth also has gravity, and there is also gravity, and the earth orbits in its orbit every day.

This is because although the earth is very heavy, it has a lot of energy. It can be suspended in space well and will not fall into the abyss of the universe.