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Astronomy
Astronomy is the science of celestial objects (such as stars, planets, comets and galaxies) and phenomena that occur outside the Earth's atmosphere (such as solar radiation and cosmic radiation).
It focuses on evolution, physics, chemistry, meteorology and the movement of celestial bodies, as well as on the formation and development of universes.
In Greek, astronomy is the "law of the stars".
Astronomy is one of the oldest sciences.
Astronomers of early civilizations were engaged in methodical observations of the night sky.
Since then, some astronomical devices have been preserved.
However, be that as it may, the invention of the telescope fell on a period earlier than the appearance of modern science.
Since the beginning of the twentieth century, the field of professional astronomy has been divided into two divisions: observational astronomy and theoretical astrophysics.
Observational astronomy is focused on collecting information, for which it is necessary to create tools and use them, as well as be able to process the results.
Theoretical astrophysics focuses on the implementation of the results of observations in computer or analytical models.
These two divisions complement one another: theoretical astrophysics tries to explain the results of observational astronomy.
Astronomical observations can be used to test fundamental theories in physics, such as the theory of relativity.
Historically, amateur astronomers have participated in many significant discoveries.
Astronomy is one of the few sciences where amateurs still play an important role, especially when it comes to observing a specific phenomenon.
Modern astronomy should not be confused with astrology, a belief system that claims that human affairs depend on the positions of celestial bodies.
Although these two spheres came from the same source, most supporters of a particular science are aware that these are two completely different systems.
Despite the fact that astronomy has helped humanity make a huge leap in understanding the universe and its laws, there are still several questions that have not been answered.
Perhaps it will be possible to answer them when new devices are built, both on Earth and in space, and a number of discoveries in theoretical and experimental physics will occur.
Such questions include the origin of the stellar mass spectrum, the existence of life in the universe, in particular, intelligent life, the explanation of the Fermi paradox, the nature of darkness, the time period of the universe's existence and the specific purpose of its existence.
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