How does GPS navigation pinpoint your exact location on Earth?

GPS navigation uses special satellites that act like invisible helpers high up in space.

Imagine you have a toy map and want to know where your favorite toy is on it. You can ask three friends who are standing at different places around the room: “How far away do I look from you?” Each friend gives you a number, and using those numbers, you can figure out exactly where your toy is.

That’s how GPS works! It uses signals from satellites that tell your phone or car how far it is from each satellite. There are usually four satellites talking to you at the same time, like four friends giving their answers. Your device uses these numbers to calculate a special point on Earth, which is your exact location.

It’s kind of like being a detective who asks questions and solves a mystery. Each satellite gives your phone a clue (the distance), and together, those clues help solve the mystery, where you are!

So even though you can’t see the satellites, they’re working hard to give you directions, just like your friends helping you find your toy!