Nowadays, GPS is a common and extremely useful tool. Europeans wanted to refine its accuracy by developing EGNOS, the precursor of the Galileo constellation. We look at satellite navigation and its applications.
Navigation by satellite
![Navigation by satellite Navigation by satellite](https://static.euronews.com/articles/144663/1200x675_144663.jpg)
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By Euronews
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IN PARTNERSHIP WITH ESA - THE EUROPEAN SPACE AGENCY
IN PARTNERSHIP WITH ESA - THE EUROPEAN SPACE AGENCY
IN PARTNERSHIP WITH ESA - THE EUROPEAN SPACE AGENCY