Probably, many of us looked at the starry sky in childhood, especially on warm August nights. The mysterious black space has always aroused people's interest. We, like our ancestors, are trying to understand what this unknown world is fraught with? This and many other questions that children often ask their parents are sometimes difficult to answer. And what is space for us adults? What do we know about him?
Order and harmony
From the explanatory dictionaries you can find out that in translation from Greek the word "cosmos" means "slenderness", "order". Ancient Greek philosophers by this word meant the entire Universe, considering it as an ordered system, which was distinguished, in contrast to disorder and chaos, by harmony. There was a time when scientists included in this concept the whole nature of the Earth, everything that happens on it. It also included heavenly bodies, planets, stars, galaxies. Known titanic work called "Cosmos". The author Alexander Humboldt included in his five volumes all the information about nature known at that time. That is, it was all about space.
Universe
What is space nowadays? This concept is endowed, perhaps, with its true meaning and means "Universe". After all, space includes stars, planets, asteroids, comets, a variety of cosmic bodies, as well as all interstellar space. And these components are interconnected. They exist, obeying laws known only to them, and man has always tried to unravel these laws. Attempts to understand what space is, probably, will never stop. This riddle stirs people's minds.
Near and deep space
Conventionally, the entire space of the Universe is divided into far and near space (near-Earth space). The territory, which is located directly near our planet, is actively studied with the help of satellites. These are special vehicles that allow a person to take an active part in space exploration. A large number of satellites are exploring near-Earth space on their own.
Deep space is inaccessible to humans. But let's hope it's only temporary. This area will someday also be occupied by humans.
Milky Way
Scientists believe that the cosmos consists of a large number of galaxies. The word "galaxy" comes from the Greek "galaktikos" and means "milky". That is why the name of ours, in which the Earth, the Solar system and all visible stars are located -"Milky Way".
Each of the galaxies has its own specific structure, and they, in turn, consist of different systems of stars. Our solar system is the main star of the Sun and the planets revolving around it. There is also a large number of various cosmic bodies, as well as cosmic dust. The magnetic field allows it all to stick together and revolve around the Sun. Each planet has its own path or orbit. Many of them have their natural satellites revolving around them. Thinking about what space is, we always come to the conclusion: it is so mysterious and mysterious that one can talk about it endlessly. Each of the celestial bodies is unique and, in turn, can become a topic for discussion. And a person will explore all this boundless space as long as he himself exists and is a small particle of it.
