A satellite is fundamentally an object which revolves about another object of a relatively large size, they can be natural or artificial. The artificial satellite is developed by NASA. They manufactured satellite as an object which can orbits earth always or some other body in space. The majority artificial satellites are mainly for revolves around earth. Artificial satellites could be said as a useful by products of the cold war.
History of artificial satellites:
The soviet and the United States have an idea to launch an artificial satellite at the year of 1955.
On October 4, 1957, soviet union launched sputnik 1 is the first artificial satellite. It can round the earth once every 96 min and transmits radio signals which is received on earth. The second artificial satellite launched by the soviet is sputnik at November-3, 1957. This satellite carried a dog whose name is laika. It was the first animal which traveled into the space.
The United States launched its first satellite named Explorer 1. It in the year of Jan-31, 1958. The second satellite launched by the United States is Vanguard on march 17 1958. The Vanguard was looked as a jet machine. It has a cosmic ray detector which is used to determine the radiation surroundings in earth orbit.
Types of artificial satellites:
Importance of Artificial satellite: