artificial satellite are helpful to us for taking the people in space
bad: might break, or freeze. good: brings joy to viewers, helpful. :)
Historically, it was the optical telescope. Modern radio telescopes, and cameras mounted on satellites, have advanced astronomy even further.
GPS would be the most helpful. It can tell the hikers where they are and where they need to go. Also, since it relies on satellites, the device will never be out of range as cell phones or radios might be.
The five major types of artificial satellites are: research, communications, weather, navigational, and applications. Please see the related links.
There are no known satellites of Mercury.
Mercury has no satellites.
Communication satellites orbit around the Earth.Communication satellites orbit around the Earth.Communication satellites orbit around the Earth.Communication satellites orbit around the Earth.
It has 3 satellites!
Triangulation of satellites requires three satellites that bank of one another simultaneously.
Those are called planetary satellites or natural satellites. Each planet has its own set of natural satellites that orbit around it.
Elliptical satellites don't have a constant speed, but circular satellites do