The main topic of the paper is the European navigation system Galileo, which was created primarily as a concrete and clear response of European countries to other competitive navigation systems, originally referring to the American navigation system better known by the abbreviation GPS. Developing its own is trying to create a new independent market and facilitate the universal and everyday use of the navigation system due to the increasing positioning requirements. The system of determining locations and navigation has become present in almost all spheres of life, and any form of travel has become unthinkable without quality satellite directions that the user usually receives through a small screen or screen on their mobile phones or cars. However, the application of the navigation system is extremely extensive and much larger than only that intended for citizens. Thus, the paper will touch on the basics of space navigation and that via satellite, but a special chapter will be dedicated to the scientist after whom this system was named, and that is Galileo Galilei. In addition, the operation of the Galileo navigation system and its comparison with other systems will be explained. In the end, a meaningful conclusion of everything written will be given and the stated hypotheses of the paper will be confirmed or refuted.