GPS: The Global Positioning System
https://www.gps.gov/
Official U.S. government information about the Global Positioning System (GPS) and related topics. Do GPS devices show your home or business in the wrong place?
Global Positioning System - Wikipedia
https://en.wikipedia.org/wiki/Global_Positioning_System
The Global Positioning System (GPS), originally Navstar GPS, is a satellite-based radionavigation system owned by the United States government and operated by the United States Space Force.