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Satellite working and history


What is Satellite?

Satellite is an artificial body which is placed in orbit and round the earth or a planet to collect information or for communication.

What is the principle of satellite?

Satellite is a body that moves around the orbit which is a mathematical predictable path. It is helpful in telecommunication, radio, television and weather forecasting.

How does a satellite get power?

Sun is the main power source of satellite, the solar panel mounted on satellite helps in getting power from sunlight. Each array consists of thousands of small solar cell which is made up of silicon.

How does communication satellite works?

Communication satellite just bounce signal from one side of Earth to other. A beam of signal is transmitted to satellite with the help of transmitter dish and the Satellite send it to receiving dish. In this way the communication satellite works.

How many Satellites in space?

Since, about 8,100 satellites were sent by more than 40 countries. According to 2018 estimate some 4,900 remains in orbit and about 1,900 were operational.

Which is the first satellite?       

The first successful satellite was sent by Soviet Union on October 4, 1957 and it is named as Sputnik 1. The satellite was in the size of beach ball and took about 98 minutes to orbit the Earth on its elliptical path.

What happens to old satellite in space?

 The Engineers will use last bit of fuel to slow down the satellite. Satellite will fall out of orbit and burn up in the atmosphere. It can take lot of fuel for a satellite to slow down enough to fall back into the atmosphere.

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