AR:

Artificial Satellites now their are thousands of orbits around earth.

(the largest satellite is orbit around the earth)
A satellite is a object in space that orbit around the big object. In latest technology there are two types of satellites natural and artificial. In natural satellite there is moon is orbit and round the is earth this is natural system and other one is artificial, In this method we are creating the machinery that is orbit and round the earth or bigger things as you see in pic satellite is rounding the earth.

First we talk about Natural Satellite system so there are many natural stellateing system as you see  in solar system in our earth the main point is sun and round about 9-10 planets are rounding the sun so there are many planets are the same naturals system if any planet have no orbits at least he have moon to complete the natural stellateing system.  
Second we talk about Artificial Satellite are completely complete in 20th century, The first A.S is Sputnik, the size of this satellite is like baseball RUSSIAN and lifted on oct,4.1957. In this time many country shocked because its first time satellite launched so that's why no experience how to launched and what next happening...


Sputnik the first satellite going in space its weight like 13kg (30pounds). In this time only two companies work on space and satellites so it is race between United States and Soviet union that is lasted until 1961s but the end of this year still both countries tries to build satellite to see what is the around earth and began the number one country of world as a space runner. than United States scientist focus on landing people on other planet such moon because it is first planet which is relatable temperature as a earth. In 1962 U.S made space shuttle and send people to moon and they are successful. While the Soviet union create a world's first space station and launched in 1971s. The name of this project is SKYLAB.