![File:GPS_satellite_constellation](http://nation.time.com/wp-content/uploads/sites/8/2012/05/filegps_satellite_constellation.jpeg)
U.S. government
…the annual operating cost of the Pentagon’s Global Positioning System, according to a new Congressional Research Service report. GPS is a constellation of 24 satellites that now can tell everyone where he or she is in the world (the initial constellation cost $12 billion to put into orbit). The operating cost works out to just over $2 million a day. Quite a bargain when you think about it.