GPS Navigation

GPS stands for Global Positioning System. It uses satellites flying high above Earth to figure out exactly where you are. GPS helps people find their way when driving, hiking, or traveling.

How GPS Was Created

GPS was built by the United States military starting in the 1970s. They put satellites into space that send signals down to Earth. At first, only soldiers could use GPS. In the year 2000, the government made GPS free for everyone.

Now GPS is used by billions of people. It is built into phones, cars, and watches. Farmers, pilots, and rescue teams all rely on GPS.

How GPS Works

There are over 30 GPS satellites orbiting Earth right now. Your phone or GPS device picks up signals from several satellites. It uses the signals to calculate exactly where you are.

GPS can tell your location within a few feet. It helps apps give you driving directions and show you nearby restaurants. GPS also helps scientists track animals and study earthquakes.

Fun Facts

• There are over 30 GPS satellites orbiting Earth at all times.
• GPS satellites fly about 12,550 miles above Earth.
• GPS can pinpoint your location within about 3 feet.

Did You Know?

GPS was originally made for the military, but a president decided to let everyone use it for free in the year 2000.