Why are there so many celestial bodies in the universe?

Due to the gravitational force and the molecular structure of different substances.

The place where something else exists is generally not called the universe.

Celestial forms present in the universe: nebulae, stars, meteors, comets, planets, moons, gases in interstellar space, dust, etc.

Introduction to the universe: The universe is defined in a physical sense as all space and time and their connotations, including all forms of energy, such as electromagnetic radiation, ordinary matter, dark matter, dark energy, etc., of which ordinary matter includes planets, moons, stars, galaxies, galaxy clusters and intergalactic matter.

The universe also includes physical laws that affect matter and energy, such as conservation laws, classical mechanics, relativity, etc.

The Great Theory is a modern cosmological description of the evolution of the universe. According to the estimates of this theory, space and time appeared together after the great ** of 100 million years ago, and as the universe expanded, the energy and matter that originally existed became less dense.

The initial accelerated expansion is known as the inflationary period, after which the four fundamental forces known separate. The universe gradually cooled and continued to expand, allowing the first subatomic particles and simple atoms to form. Dark matter gradually accumulates and forms foam-like structures, large-scale fibrous structures and cosmic holes under gravitational pull.

Huge clouds of hydrogen and helium molecules were gradually drawn to the densest concentrations of dark matter, forming the first galaxies, stars, planets, and everything.

Space itself is expanding, so objects that are currently 46.5 billion light-years away from Earth can be seen, because these lights were generated 13.8 billion years ago and are closer to Earth than they are today.

The above content reference: Encyclopedia - Universe.

Nebulae: mass of matter that does not form a fixed shape, mostly particles, small objects;

Astral: has a fixed form of matter. It is divided into planets and stars. There are juvenile stars, adult stars, red giants, white dwarfs, brown dwarfs, neutron stars, and black holes.

Juvenile stars refer to stars that have just formed, and they need to be relatively massive to form stars, and the internal gravitational force causes the matter to undergo nuclear fusion and glow to form such stars. Adult stars are like our sun. A red giant is a stellar senile form of the mass of the Sun.

A white dwarf is an older form of a star that is more massive than the Sun, after which it becomes a neutron star, and when it is massive and old, it becomes a black hole.

The most basic celestial bodies, stars, and nebulae in the universe. The details are as follows:

Celestial bodies are the forms of matter that exist in the universe, including stars, nebulae, planets, asteroids, moons, comets, meteoroids, interplanetary matter, interstellar matter, etc., among which the most basic celestial bodies are stars and nebulae.

Stars are spherical objects made up of hot gas that emit light on their own. Nebulae are celestial bodies made up of gas and dust with a cloudy appearance.

Judging whether a substance is a celestial body can be summarized by "three looks":

1) One is to see if it is the existence form of matter in the universe, although interstellar matter is invisible to the naked eye, it is a celestial body;

2) the second is to see whether it is a matter in the universe, and a certain part of the celestial body is not a celestial body;

3) The third is to see whether it is located in the earth's atmosphere, the celestial body located in outer space, and the celestial body located in the earth's atmosphere.

The above content reference: Encyclopedia - Celestial Bodies.

Summary. Celestial bodies: Celestial bodies are collectively referred to all cosmic stars, including interstellar matter and various accumulating entities.

The agglomeration of celestial bodies, thus forming the object of study of various astronomical states. The cosmic matter that people see exists in various forms. The aggregators form the stars, the diffuse ones make up the nebula, and the extremely thin ones that diffuse are called interstellar matter, including interstellar gas and interstellar dust, all of which are collectively called celestial bodies.

Artificial satellites, spacecraft, space laboratories, and various probes launched into space by humans are called artificial celestial bodies.

Hello, glad to answer for you. The basic celestial bodies of the universe: stars and nebulae.

Stars and stars are fundamental celestial bodies. There are eight planets in the solar system: Mercury, Venus, Earth, Jupiter, Saturn, Uranus, and Neptune (Pluto has been expelled from the planet and reduced to a dwarf planet.)

Celestial bodies: Celestial bodies are collectively referred to all cosmic stars, including interstellar matter and various accumulating entities. The agglomeration of celestial bodies, thus forming the object of study of various astronomical states.

The cosmic matter that people see exists in various forms of pure friends. The aggregators form the stars, the diffuse ones make up the nebula, and the extremely thin ones that diffuse are called interstellar matter, including interstellar gas and interstellar dust, all of which are collectively called celestial bodies. The artificial sail pants satellites, spaceships, space stuffy laboratories, and various probes launched into space by humans are called artificial celestial bodies.