Moon

Artificial satellites

1. Moon is the natural satellite of the Earth and is formed by nature. It is permanent.

1. Artificial satellites are manmade and are launched from the Earth. For example, INSAT, IRS, Kalpana-1, EDUSAT are artificial satellites.

2. The distance between the moon and the Earth is very large and hence, it does not have any practical application.

2. They revolve around the Earth much closer than earth’s natural satellite, the moon. They have many practical applications. They are used for forecasting weather, transmitting television and radio signals. They are also used for telecommunication and remote sensing.