Alright, here’s how GPS pinpoints where you are on Earth! So, GPS stands for Global Positioning System, and it uses a bunch of satellites orbiting way up in space to help figure out where things are down here on the ground. These satellites send out signals with the time the message was sent and where the satellite was at that time. Now, to get your precise location, a GPS device (like your smartphone) needs signals from at least four of these satellites. When these signals reach your device, it uses the time difference between when the signals were sent and when they were received to calculate how far away each satellite is. Now, because we know the exact orbit of each satellite, the device can use this info to work out exactly where it is on the globe by a method called trilateration. It’s a bit like triangulation but with additional data points. Hope that helps demystify it a bit!