A "live satellite" is something that is being shown "live" from a satellite, such as images from space, or views of the Earth from a satellite in outer space. TV programs you watch on satellite is not considered "live satellite".
A satellite is an object, man made or natural, that orbits something else. No, not all satellites are moons, but all moons are satellites; they're natural satellites.
Satellite is probably the most useful invention since the wheel. Satellites have the capability to let you talk with someone across the nation or let you close a business deal through video...
It has made global communications, sattelite mapping, GPS and many other technologies a reality, as well as opened up 99.999% of the universe to us for study and observation, allowing us to view...