The Milky Way is the galaxy that contains our solar system. Its name graphically describes what we see on Earth: a fuzzy band of light in the night sky made up of stars that are indistinguishable.
Astronomers believe that the Milky Way was formed at the same time as the Big Bang. But the newly created Milky Way was chaotic, with short-lived blue giants being created all the time.
Its motion was not very regular either. After more than 2 billion years of orbiting, the center of the galaxy did not largely stabilize until 11.2 billion years ago. In the inner part of the galaxy, new stars with very large masses were formed due to the high density of hydrogen and helium gas. After it collapsed from complete combustion, it formed extremely massive white dwarfs.
Because it is so massive, the surrounding matter is constantly attracted to it, which in turn increases its collapse, becoming smaller, denser, and more gravitationally powerful, as well as generating a very strong magnetic field. In the end, even the closest photons cannot escape their attraction.
No matter what instruments are used to detect it, the result is an abyss of blackness. The German scientist Carl Schwarzschild called such an object a "black hole".
The origin of the Milky Way in Greek mythology was influenced by a 1575 painting by Renaissance artist Jacopo Tintoretto called "The Origin of the Milky Way.
According to the National Gallery of Art, Tintoretto may have based the painting on a story called "Geoponica" that circulated in the 10th century. The story depicts Zeus placing the infant Hercules on the breast of his sleeping wife, Hera so that the infant could be cared for.
So that the baby could be cared for, when Hera woke up and got up to leave, her milk spurted into the sky, giving rise to the Milky Way galaxy.
Due to their large number, most of them are galaxies without a specific name. With the development of science and technology and the improvement of people's ability to discover, more and more galaxies are being discovered.
Even for some very faint objects, it is estimated that the total number may be as high as 200 billion. The vast majority of galaxies, once scientists have discovered their location, are named with a number or letter indicating their position in the catalog of celestial objects.
Galaxies are isolated islands floating in the universe, composed of vast amounts of gas, dust, and hundreds of billions of stars that form a giant disk under the influence of gravity, dotted by many globular clusters of stars that emit a bright halo of light.
On a clear night, we can see a band of galactic light stretching across the sky, a blur of light stretching from one side of the horizon to the other.
This band of light is made up of a large number of stars that telescopes can distinguish as individuals, but our eyes cannot. We are at a distance of about two-thirds of the galactic radius from the silver center, which is why we can see such a magnificent Milky Way.
There are faint regions in the galactic light belt due to the obscuration of interstellar matter, and radio telescopes can see these dust clouds and determine that the matter in our galaxy is distributed in a disk with spiral arms of matter trailing past.
Our galaxy has an extremely large number of stars at its center, located in the direction of Sagittarius, which may contain a giant black hole.