Today, GPS satellites orbit the earth. They send signals to GPS receivers in cars, smartphones, computers, and drones. Inside GPS introduces readers to the uses of GPS, the hardware and software that make GPS possible, and the future of GPS technology. Easy-to-read text, vivid images, and helpful back matter give readers a clear look at this subject. Features include a table of contents, infographics, a glossary, additional resources, and an index. Aligned to Common Core Standards and correlated to state standards.