There are a great number of satellites currently orbiting the Earth, and they are ALL important; at least, important enough to SOMEBODY to spend millions of dollars to launch each one.
Depending on your interests, the "most important" satellites are probably the weather forecasting satellites, followed by the communications and GPS satellites.
The moon is called a satellite of earth because it revolves around the earth
Moons and planetary rings can revolve around a planet.A satellite or moon.A satellite or if it's big enough a moon
That is called a satellite.
An object that moves around a planet is called a satellite. Satellites can be natural, like moons, or artificial, like those used for communication or scientific research.
Because it is a satellite - it stays in orbit around Earth. And it is natural - meaning not made by humans.
The moon is called a satellite of earth because it revolves around the earth
The satellite that revolves around the Earth is called the Moon.
Moons and planetary rings can revolve around a planet.A satellite or moon.A satellite or if it's big enough a moon
A satellite is an object that orbits around a planet or body in space. There are artificial satellites and natural satellites. An artificial satellite is an object, like a space station, that has been set into orbit around a planet by humans. A natural satellite naturally finds its way into close orbit around a planet, like the moon naturally orbits the Earth.
An artificial satellite.
A body in orbit around a planet is called a satellite.
Satellite or orb
Satellite
That is called a satellite.
orbit
This is called "orbit".
satellite