Physics. Specifically, it's a combination of inertia and gravity.
Communication satellites orbit around the Earth.Communication satellites orbit around the Earth.Communication satellites orbit around the Earth.Communication satellites orbit around the Earth.
The Earth orbit in which satellites appear to be stationary is called the, "Geostationary Orbit". Some call it a synchronous orbit.
Satellites orbit Earth in the thermosphere and exosphere, which are the upper layers of the Earth's atmosphere. The exosphere is the outermost layer of the atmosphere where most satellites, particularly those in geostationary orbit, are found.
Natural satellites are organic objects that orbit the earth such as the moon. Artificial satellites are objects humans propel through the earth's atmosphere in order to orbit the earth such as satellites for TV and radio signals.
Satellites orbit the earth for a few years then fall to earth however they are directed to fall to the sea
Moon
communication satellites, astronomy, navigation, etc.
No. That only applies to low Earth orbit. Geostationary satellites orbit beyond it.
The reason that satellites stay in orbit around Earth is because of two factors. Velocity and the gravitational pull between the satellite and the Earth.
yes.
No, all satellites do not orbit Earth at the same altitude. An good overview of this can be found on http://www.idirect.net/Company/Satellite-Basics/How-Satellite-Works.aspx. This overview reviews Low Earth Orbit, Medium Earth Orbit and Geostationary Orbits.
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