Look up, there is a ceiling or sky. We use the words “top” and “bottom” dozens of times a day, without thinking about their meaning. We say: "What you toss up will definitely fall down." But here we see a lot of stars in the sky. Why don't they, like a ball, fall down?

What is the top and bottom

Wait a minute! Do the words “top” and “bottom” really mean what we attribute to them? If we fly to the South Pole, to Antarctica, then we will not have to go upside down there. Wherever we go on Earth, there will be heaven from above, and solid soil beneath our feet.

What we call the "bottom" is most directly related to the force of gravity (gravity). Objects are falling toward the ground - we call it the “bottom” because they are attracted to gravity, which is under our feet. But if we move away from the Earth in a spaceship, then the concepts of “top” and “bottom” will lose their meaning. During space flight, there is only a huge empty space between planets and stars. Falling or “flying” stars are actually meteorites, fragments of stone or ice, drawn from space to Earth by the force of its gravity

Cosmos, attraction, top and bottom

In space it is impossible to determine - where is the top and where is the bottom. Since there really is no gravity in space, the astronaut is not able to determine where the top is and where the bottom is. The astronaut can walk on the ceiling of the ship or on the floor. Moreover, he will not feel any difference: “top” and “bottom” appear when we are somehow oriented in the gravitational field, that is, in the gravitational field.As soon as gravity decreases or practically disappears, the concepts of “top” and “bottom” lose their meaning.

Everything, however, changes during the landing of the spacecraft. The force of gravity begins to appear. When the ship approaches Earth, the astronaut immediately remembers where the top and bottom. Each planet, like every star, has gravity. Giant gravity is the force that holds nine planets of our solar system in orbit around the Sun, including the Earth.

So why don't the stars fall?

The stars of the night sky are cosmic bodies remote from us for trillions and trillions of kilometers. The attraction between them and the Earth is negligible. But if someday these stars approached the Earth, then it would fall on the stars, attracted by their giant attraction, and not vice versa. So alas! Stars do not fall and will not fall to Earth. Only meteorites fall to the Earth - these pieces of rocks or ice that people took for stars. Romantic, but not true.