Modern satellites launched into orbit around Earth mean that countries around the world have access to service such as internet and data, which can be used to transfer information across the globe instantaneously.
GPS, or global positioning system, is a satellite-based navigation system. The GPS system is controlled by the U.S. government's Department of Defence, however, it is open to the public for use. The earliest GPS system was launched between 1978 and 1985 with 11 satellites. It now consists of about 24 satellites that were launched into orbit in 1995. The GPS is a highly accurate navigation tool.