On Tuesday, november 8, the 3rd regular seminar of the Department of Aerospace Engineering for the fall semester of 2024 was held. At this seminar, Moon Beum Heo, the KPS R&D director of KARI was invited as a speaker. Moon Beum Heo gave a lecture named: “Introduction of global navigation satellite system and development status of Korean global navigation satellite system”, and through this lecture, he lectured about the principle and history of global navigation satellite system.