Satellites are launched into space on rockets. they are launched on certain posision where they don't crash into each other.
Benefits
When they are launched they orbit a star or planet, Earth for exemple. They can capture informationthat would be impossible to obtain from earth's surface.
Navigation system
The satellite transmits data from space to earth by using radio waves, the data from the satellite is collected by the antennae that generates the radio waves and processes the information.
Weather
Brooklyn, New York City
Then the data is transferred to your computers, phones, televisions, providing wifi signals,
GPS
climate and environmental monitoring, and more...
Its gonna rain in NYC for the next 2 weeks!