How were galaxies born? How did the planet come about?

The formation of planets can be roughly divided into two situations from a formal point of view, the first is that the substances that form celestial bodies gather together and constantly collide and rub against each other, and eventually form planets.

Giant spherical bodies made up of various substances are called planets.

Planets have a certain shape and have their own orbits. Definition of a star: A spherical or globular object composed of hot gas that emits light on its own. The closest star to Earth is the Sun, followed by Proxima Centauri.

Planetary Definitions: Celestial Bodies; orbiting the stars; Its own gravitational pull is enough to overcome its rigid physical strength and make the celestial body spherical; Able to clear other objects in the vicinity of its orbit.

Planets are formed through gravitational pull.

Giant spherical bodies made up of various substances are called planets. Planets have a certain shape and have their own orbits. Inside the mass concentration area.

Within this region, there is also a slight imbalance in the mass distribution, with some places having slightly higher mass density and others being slightly smaller. Similarly, the closer to the center, the higher the density, and the farther to the periphery, the lower the density. The matter will concentrate in a place with a greater mass.

As a result of concentration, the matter is highly concentrated, and eventually it will become a shining star. Some stars will also form smaller planets around them, because the mass is too small to shine and heat on their own, they are planets.

The more material that accumulates in a galaxy, the more planets can form inside the galaxy. Our galaxy and the Andromeda galaxy are relatively large galaxies, with hundreds of billions of stars, and the Andromeda galaxy is larger than the Milky Way, with more stars than in the Milky Way. In smaller galaxies, the number of stars is relatively small, and according to scientists, some dwarf galaxies have only a few hundred thousand stars.

Galaxies are made up of black holes, charts and stars in the core of stars, and dark matter, and it happened 13.7 billion years ago, when early hydrogen fusion formed helium, which gave rise to stars, the first stars in the universe, because of their large mass, genesis and speed, their lifespans were not even a short 1 million years. At this time, there are no neutron stars. So they all became black holes.

Galaxies may have been formed by the cosmic universe, or they may have been formed by cosmic dust.

Galaxies are caused by the strong gravitational attraction in the universe to cause many stars to gather together, and they form many regular or irregular galaxies.

To understand how galaxies formed, we need to go back to the beginning of the universe. At that time, the universe was filled with large residual gas clouds, and in some places there was thick interstellar gas, which formed tens of millions of stars. Most of the original stars were supermassive stars, which were extremely hot and burned fast, and they produced a large number of black holes after that.

Gravity pulls many black holes together, and in the early universe they merged with each other to form larger black holes. Over hundreds of millions of years, black holes continue to grow and are called supermassive black holes. These super-black holes, which can reach a gravitational range of millions of light-years, are constantly dragging more and more interstellar gas into their own gravitational range, which evolves into hundreds of billions of stars as they orbit the black hole, forming primordial galaxies.

A young galaxy is a cluster of stars born out of gas. At the center of the new galaxy is a young supermassive black hole that grows by swallowing gas. The gas flies into the black hole, but the black hole becomes so saturated that there is no room for more hot gas to enter.

The inaccessible gas is spit out by the black hole and spewed into space, creating a huge flow of energy. No energy stream is 20 times wider than our solar system, and they are invincible in the galaxy. This supermassive black hole ignited a quasar—

Quasars emit massive amounts of interstellar gas from their systems, with a mass equivalent to 10 Earths per minute. This process generates a huge amount of heat around supermassive black holes. Gases expand when heated, a bit like wind but on a huge scale.

These are the black hole winds, which spread around the black hole at such a fast speed that they can blow all the gas in the galaxy away from the galaxy.

The black hole sucks in the gas, the quasar spews out the gas, and eventually there is no extra gas left in the galaxy to make stars, and the galaxy stops growing. Therefore, we believe that the final size of a galaxy depends on the size of the central supermassive black hole, and the two are closely related. Having lost its gas raw materials, the quasar gradually shrunk and disappeared, leaving only a supermassive black hole and many young stars at the center of the galaxy.

Our galaxy was like that when it was young, and now, our galaxy has stopped growing and is called a full-fledged galaxy.

Each quasar is the prototype of a young galaxy and has a supermassive black hole at its center. Therefore, it can be said that supermassive black holes and quasars make galaxies and control entire galaxies.

The universe is uneven, a pile in the east and a mess in the west. This mass is a galaxy.

It is believed that galaxies are formed by the gravitational pull of black holes, and black holes are formed by the collapse of stars, and the collapse of gravity is in the form of an outside-in form, and this gravitational force is almost perpendicular gravity. And everyone has seen the astronomical telescope photographed **, the existence of galaxies are all rotary, so imagine what the shape of matter under vertical gravity is like to understand that the formation of black holes and galaxies is not due to the collapse of stars. The collapse of a star can form a certain gravitational pull, and it may even be a so-called black hole.

But such black holes are completely different from the black holes that form galaxies. First of all, the shape of the galaxy that we can see intuitively is completely different from the shape of the collapse gravity. There is such a gravitational pull that is far from the power of the converging galaxies.

So how exactly do black holes and galaxies form? That's the wind. Everyone on Earth knows how tornadoes are formed, and its strong gravitational pull is obvious to all.

So in the universe, let's call it the cosmic wind, only the cosmic wind can form black holes of different sizes and shapes, and there will be various galaxies. Galaxies are conceived in the formation and disappearance of such black holes, which have the conditions for the formation of galaxies of various forms. Black holes do not extend infinitely, and when the cosmic winds that prompted them to form slowly subside and fade away, black holes disappear as well.

The various forms of galaxies we observe are the manifestations of the various periods from the formation to the disappearance of black holes.

Domineering and indescribably domineering.

The Earth-Moon System is a branch of the Solar System, the Solar System is a branch of the Milky Way, and finally the galaxy is like a big tree.

There are, for example, the solar system and the Milky Way.

Yes, for example, the Milky Way has the solar system in it, and the Earth-Moon system in the solar system. The Milky Way in turn belongs to the local group of galaxies. This group of galaxies belongs to the much larger Virgo supercluster.

The Milky Way is the barred spiral galaxy where the solar system is located, and includes 1000 to 400 billion stars and a large number of star clusters, nebulae, and various types of interstellar gas and interstellar dust. Viewed from Earth, the Milky Way is a white ring around the sky. The total mass is about 210 billion times that of the Sun.

It belongs to the local group of galaxies. The nearest extragalactic galaxy is the Dwarf Canis Major galaxy, located 4,200 light-years away from the Milky Way.

Regarding the origin of galaxies, scientists have also conducted in-depth research, and the representative theory is the gravitational instability hypothesis and the cosmic turbulence hypothesis: gravity is not.

The capacitive stability hypothesis holds that over a period of 3 billion years, the material of the galaxy cluster formed a proto-galaxy due to gravitational instability, and further formed galaxies or stars; The cosmic turbulence hypothesis holds that when the universe expands, a vortex is formed, which stops the expansion and forms a protogalaxy at the vortex.

Both of these ideas believe that galaxies were formed 10 billion years ago, but like some other theories about the origin of galaxies, although both have far-reaching implications, neither can fully and scientifically explain the theoretical problem of the universe island.