A satellite is a moon, planet or machine that orbits a planet or star.
For example, Earth is a satellite because it orbits the sun
Aryabhata India’s first Satellite on a two Rupee note from the Eighties.
Mars Orbiter on the Latest Two thousand Rupee note.
Satellite communication plays a vital role in day today services of our life.
Nowadays in many homes antennas or dishes are used for reception of satellite television.
Satellites communicate by using radio waves to send signals to the antennas on the Earth.
The antennas then capture those signals and process the information coming from those signals.
Satellites are having unique features than other communication means,
because they can cover the entire earth and able to link many users simultaneously.
Satellites also provide communication to remote areas,
which are very difficult to access by other means.