How does GPS accurately pinpoint your location on Earth?

GPS uses special satellites that send messages to your phone or watch, like a group of friends telling you where they are so you can find your way.

Imagine you're playing hide and seek in a big park. If three of your friends tell you how far away they are from you, you can guess where you’re hiding, even if you don’t know exactly where the others are! GPS works like that, but with satellites instead of friends.

Each satellite sends a message showing its location and the time it was sent. Your phone gets these messages and uses them to figure out how far away each satellite is, just like knowing how far your friends are from you in hide and seek.

Your phone then draws circles around each satellite, showing all the places that match the distance it found. Where those circles overlap, that’s your location! The more satellites sending messages, the more accurate the guess becomes.

So GPS isn’t magic, it’s like having a team of friends helping you find your spot in a big park.