Why can the sun's gravity affect objects tens of billions of kilometers away?

The first person to discover gravity was Newton. However, the famous Newton could not explain the nature of gravity at that time. It was not until Einstein explained it hundreds of years later that he believed that gravity was not something at all. It is not a kind of gravity, but a space-time curvature effect. This is how we truly understand gravity. There is a gravitational force between every object with mass. The greater the mass, the greater the gravitational force, and the further away the object, the smaller the gravitational force.

The sun is the celestial body in the center of the solar system. The sun accounts for 99.86% of the mass of the entire solar system. At this point, you can think about the gravitational pull of such a massive celestial body. Why are other celestial bodies not affected? Does it suck in?

It stands to reason that the gravitational pull of the sun is so strong that our earth and other planets just revolve around the sun in their own orbits, and the sun does not attract them. Why is this?

In fact, compared to the earth, the sun’s strong gravitational pull can pull the earth towards it at such a short distance. However, because each major planet has an angular momentum when it is born, the central star and each planet are separated from each other. The gravitational and centrifugal forces between the planets have achieved a perfect balance. If there is no resistance in space, this balance will continue forever, so other planets, including the earth, will not be sucked in.

We know that the earth is closer to the sun, and the earth will definitely be affected by the gravitational pull of the sun, but why are the planets far away from the sun, Neptune, and Pluto outside Neptune, and billions of small planets? Will celestial bodies still be affected by the gravitational pull of the sun and revolve around it in their own orbits?

We know that other planets and celestial bodies are not stationary in the universe. They move in their orbits at their own speeds. The farther a planet is from the sun, the slower it moves, and the sun also moves at its own speed. It orbits the center of the Milky Way at an average speed of about 240 kilometers per second, and the sun's gravity is about 10,000 to 100,000 astronomical units. This boundary is very vast, and the gravitational range is naturally relatively large. Its gravitational force The effect can also affect objects tens of billions of kilometers away.

The solar system has also existed in the universe for five billion years. Due to natural selection, all celestial bodies that do not meet the balance standards will naturally be eliminated, and the remaining celestial bodies will naturally be A balanced celestial body is formed by the gravity of the sun and its own centrifugal force?