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.
Earth's only natural satellite is called "the Moon". The Earth also has thousands of artificial satellites currently in orbit.
Moon.
The moon is called a satellite of earth because it revolves around the earth
a satellite. a satellite is a natural or artificial body that revolves around a planet
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
That is called a satellite.
A moon or satellite. what are the natural satellites which revolve around planets
The moon is called a satellite of earth because it revolves around the earth
a satellite. a satellite is a natural or artificial body that revolves around a planet
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
orbit
The smaller lesions which form around the primary lesion are called "satellite lesions."
Satellite or orb
Satellite
That is called a satellite.
Astronomically speaking, an object that orbits a larger object is a satellite. I.E. the moon is the earth's satellit
The motion is called an "orbit."An astronomical object that is revolving around another object is called a satellite. A natural satellite of a planet is a moon (if comparatively small, moonlet).