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Global Positioning System

Adapted from Wikipedia · Explorer experience

An artist's illustration of a GPS Block IIIA satellite orbiting Earth, showing how satellites help with navigation and communication.

Global Positioning System

The Global Positioning System (GPS) is a wonderful tool that helps people know exactly where they are on Earth. It uses special satellites that circle our planet to send out signals. These signals help phones, cars, and even maps show your location.

GPS was created by the United States Space Force to help with navigation. It started in 1973 and became fully working in 1993. Today, it helps everyone—from drivers finding new roads to scientists studying weather.

You might use GPS every day without even knowing it! When you ask your phone for directions or use a map app, GPS is at work. It is also used on ships, airplanes, and even in farms to help plant crops. The best part is that anyone in the world can use GPS for free.

GPS works very well because it does not need the internet or a phone signal. Satellites have very accurate clocks that help find places exactly where they are. Even if you are far from towns or cities, GPS can still help you know where you are.

People love GPS because it makes travel easier and helps keep things running smoothly all around the world. Whether you are hiking, driving, or just checking the time on your phone, GPS is a quiet helper that makes many things possible.

Images

A handheld GPS receiver used for navigation and tracking.
A taxi driving through the streets of Kyoto, Japan, equipped with a GPS navigation system.
A U.S. Space Force officer monitors the health of a GPS satellite at Schriever Space Force Base, highlighting careers in space technology and satellite operations.
NTS-II, the first operational GPS satellite designed and built by the U.S. Navy, launched in 1977 to improve navigation technology.
A GPS satellite on display at the San Diego Air & Space Museum, showing how space technology helps us navigate the Earth.
A GPS satellite being tested in a special chamber to ensure it can handle the extreme temperatures of space.
A GPS monitor station on display at the Air Force Space & Missile Museum, showing technology used for tracking space missions.
A collection of GPS receivers from brands like Trimble, Garmin, and Leica, used for navigation and tracking locations.
A Leica WM 101 GPS receiver on display at the National Science Museum at Maynooth.
A GPS receiver with an built-in antenna, showing how technology helps us find our way.
Animation showing the GPS satellite network orbiting Earth above Golden, Colorado.

Related articles

United States Space Force

This article is a child-friendly adaptation of the Wikipedia article on Global Positioning System, available under CC BY-SA 4.0.

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