History of Satellites From Sputnik to GPS

>> YOUR LINK HERE: ___ http://youtube.com/watch?v=J5YGmJprovI

history of satellites, Sputnik, GPS history, communication satellites, weather satellites, space exploration, satellite technology, space race, NASA satellit...

satellites, space history, Sputnik, GPS, space exploration, communication satellites, weather satellites, Earth observation, space race, and NASA.
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