I believe that NASA not only sends the satellites up they also monitor them on a daily basis.
Satellites of the Earth are held in their orbits by the Earth's gravity. That includes the Moon and all the artificial satellites etc. that are up there.
At present there are around 24-32 satellites orbiting in medium earth orbit(11,000 miles)more the satellites more accurate navigation is produced.
If they are in the atmosphere (low earth orbit), satellites are in the ionosphere. If they are in higher orbits, satellites are considered to be outside the atmosphere.
With large number of low-earth-orbit satellites and the geo-synchronous orbit stuffed full of communications satellites, there aren't all THAT many "medium" altitude satellites. But there are some. The GPS navigation satellites, for example, are in highly inclined 12-hour orbits, and an unknown number of military "spy" satellites are in that middle range.
Most moons orbiting the various planets of our solar system are considered "satellites" - more specifically, "natural satellites". In addition, the more general use applies to the various space modules, etc., orbiting around the earth or around other planets of the solar system. As they are the result of human device, they are considered, "artificial Satellites". Sputnik 1, as the very first of these, acts as prime example.
Communication satellites orbit around the Earth.Communication satellites orbit around the Earth.Communication satellites orbit around the Earth.Communication satellites orbit around the Earth.
France is a part of the European Space Agency and participates in launches by this agency along with other member nations. The French government has launched 4 reconnaissance satellites: Hélios 1B, Helios 2A, Cerise, and Clementine
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Satellites of the Earth are held in their orbits by the Earth's gravity. That includes the Moon and all the artificial satellites etc. that are up there.
Satellites orbit the earth for a few years then fall to earth however they are directed to fall to the sea
Satellites, can either be natural satellites (for example; Earth's moon), or man made satellites (for example; communication satellites).
Earth. Earth has one natural satellite, the moon, which is in orbit around the earth. There are around 3000 man made satellites currently in orbit. Jupiter has the most natural satellites (moons), over 60 have been confirmed. It has no man made satellites in orbit around it, but did have one between 1995 and 2003, an orbiter called Galileo.
Since we live ON the Earth, all satellites WE have sent have been sent FROM the Earth, and circle around it.