"This is the challenge facing the U.S. Navy as it tries to bring back celestial navigation. The Navy stopped training its service members to navigate by the stars about a decade ago, focusing instead on electronic navigational systems. But fears about the security of the Global Positioning System and a desire to return to the basics of naval training are pushing the fleet back toward this ancient method of finding a course across open water."
U.S. Navy Brings Back Navigation By The Stars For Officers : NPR
U.S. Navy Brings Back Navigation By The Stars For Officers : NPR