It depends upon the purpose of sattalite
62 satellites so far and recently rishant 1 of pslv 19 has been launched on 26 April 2012
Far
Some known satellites for Mars include Phobos and Deimos. Phobos is the larger and closer of the two, while Deimos is smaller and farther away. Both satellites are irregularly shaped and are thought to be captured asteroids.
72 + 35 (foreign) satellites were put into orbit so far (till November 2013).
You can see satellites orbiting. If you go on a clear night to somewhere which is far from city lights, you will sometimes see dots moving across the sky - these are satellites reflecting sunlight.
for giving information to places on earth that is far far away.
Satellites in Low Earth Orbit (LEO) are typically around 160-2,000 kilometers away from the Earth's surface. Geostationary satellites, on the other hand, orbit at an altitude of about 35,786 kilometers above the equator.
no, mercury and venus are the only two planets that do not have moons.
If they were too far out, then they would not be very useful as weather satellites, because they would orbit too slowly, and they would be too far away to make out the weather.
Navigation. The Global Positioning System (GPS) provides location and time information for anywhere on the Earth via a series of satellites in geostationary orbits. The time it takes for the driver/pilot to send a signal to the satellites and receive it back again can be used to work out how far away you are from the satellites, which is used to work out where you are.
In a sense they are continually falling to Earth, but they are so far away that the curve of their fall is big enough to follow the circumference of the Earth.
Old satellites orbiting near the Earth eventually fall back into the atmosphere and burn. Satellites orbiting farther away stay in orbit indefinitely.
Artificial satellites come from all over the world. Each country send their own satellites into space.
Far, far away is a saying that means something is literally far away.
There are about 4 that go for one and the four share many. The four gives you an exact location. I am not sure how far away however
The moon, at an average distance of 238,860 miles.
They do not. Artificial satellites are mostly close to the Earth, while the Moon is a quarter-million miles away.