Your phone's GPS must adjust for time moving faster in space to stay accurate
Global Positioning System satellites must account for Einstein's theories of relativity to prevent location errors that would otherwise grow by kilometers every single day.
To maintain accuracy, GPS satellites must adjust for time moving 38 microseconds faster per day in orbit than on the ground. This occurs because gravity is weaker in space, causing time to accelerate relative to Earth's surface, a phenomenon described by Albert Einstein's general relativity.
Continue Reading in App
1 more paragraph · plus a 3-question quiz