Do we know what outer space is?

Probably many of us in childhood was considered a starry sky, especially on a warm August night. Mysterious black space always arouse people's interest. We, like our ancestors, trying to understand what this unknown world fraught? This and many other questions that are often asked by kids to their parents, sometimes it is difficult to give an answer. And what is the space for us adults? What do we know about him?

The Order and harmony

Dictionaries to find out what the Greek word "Kosmos" means "slim", "order". The ancient Greek philosophers, this word meant the entire Universe, seeing it as an ordered system, which is characterized, in contrast to the disorder and chaos, harmony. There was a time when this concept scientists included the whole nature of the Earth, everything that happens in it. Also it was part of the heavenly bodies, planets, stars, galaxies. Famous Titanic work called "Cosmos". Author Alexander Humboldt concluded in their five volumes of the entire well-known at that time, information about nature. That is, it was all about space.

The universe

What is the space in our time? The concept is endowed with, perhaps, its true sense means "the universe". Because the space includes stars, planets, asteroids, comets, and various space luminaries, as well as all interstellar space. And these components are connected. They exist, known only to them obeying the laws, and these laws, man has always tried to solve. Trying to understand what outer space is probably never-ending. This mystery excites the minds of people.

Near and far space

Conventionally, all of space is divided into far and near space (near-earth space). Area, which is situated directly near our planet, are actively studied with the help of satellites. This is a special vehicle that allows people to take an active part in space exploration. A large number of satellites are exploring near-earth space of their own.

deep space for humans is not available. But, hopefully, only temporarily. This territory ever occupied by man.

Milky way

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Scientists believe that the cosmos consists of a large number of galaxies. The word "galaxy" comes from the Greek for "galaktikos" also means "milk". That is why our name, which are the Earth, the Solar system and all the visible stars – "the milky Way".

Each of the galaxies – its specific structure, and they, in turn, consist of different stars. Our Solar system – this is the main star, the Sun and planets revolving around it. There is a large number of different cosmic bodies and cosmic dust. A magnetic field lets it all stick together and rotate around the Sun. Each planet has its own path or orbit. Many of them have natural satellites revolving around them. 

 Thinking about what space is, we always come to the conclusion that he is so mysterious, what to say about him is endless. Each of the heavenly bodies is unique and, in turn, may be a topic for discussion. And people will explore all this boundless space, yet he exists and is a small particle.