GLOBAL POSITIONING SYSTEM (GPS)

Global Positioning System (GPS) relies on satellites equipped with atomic clocks. Due to their speed and the gravitational field in space, the clocks experience relativistic effects, causing them to tick at a different rate compared to clocks on Earth. Without corrections based on both special and general relativity, GPS accuracy would degrade significantly over time.
Explain this in a veryshort and simple way

GPS uses satellites with atomic clocks, which are really accurate clocks. However, because satellites move fast and are far from Earth, their clocks tick differently than clocks on Earth. So, GPS needs to make adjustments based on special and general relativity theories to keep accurate timing and location information.