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The global positioning device or as we know it as GPS is a system of satellites in space that revolve around the earth using its orbit. These satellites provide the location and other essential information to you anywhere in the world despite the weather. GPS has evolved tremendously over the years and the tech you use today is majorly dependent on GPS technology. NASA is already working on the next generation of GPS satellites that are going to be able to provide you a broad spectrum of information faster than ever before. GPS is also used to make sure that no two planes come close and run the risk of crashing.
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