Jammu, April 19 -- Ever wonder how your phone's map works no matter where you are? It's thanks to Global Navigation Satellite Systems (GNSS) that allow devices to pinpoint their location using orbiting satellites. In this article, we'll break down the worldwide GNSS network and India's own regional satellite navigation system called NavIC.

At its core, GNSS involves a group of satellites circling the Earth and transmitting precise time and position data. As long as a navigation receiver can detect signals from at least four satellites, it can calculate its three-dimensional location through a process of triangulation. This simple yet effective concept has enabled turn-by-turn directions and location services on billions of devices.

Whil...