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takyon [soylentnews.org] writes:

The U.S. Navy is bringing back training in celestial navigation for officers [npr.org] due to fears of over-reliance on the Global Positioning System (GPS):

"Raise your hand if you have ever determined your location on the planet using the stars," Lt. Daniel Stayton tells his class at the U.S. Naval Academy [usna.edu]. A young officer halfheartedly puts up her hand. Another wavers. The rest of the class of 20 midshipmen sits stone-faced.

This is the challenge facing the U.S. Navy as it tries to bring back celestial navigation [celestialnavigation.net]. 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.

[...] So, why return now to the old ways? The Navy and other branches of the U.S. military are becoming increasingly concerned, in part, that they may be overly reliant on GPS. "We use it to synchronize all military operations, we use it to navigate everywhere — it's just something the U.S. military can't live without," says Brian Weeden [swfound.org], a former Air Force officer now with the Secure World Foundation, a nonprofit that studies security issues in outer space. In a big war, the GPS satellites could be shot down. Or, more likely, their signal could be jammed or hacked. Already, jamming has become more common, Weeden says. "You can buy a lot of GPS jammers off the Internet," he says. "A lot of those are made by Russia." He thinks the Russians probably have systems to jam the special signals the military uses as well. And China may be developing similar capabilities.

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[Rear Admiral Michael White], who heads the Navy's training, says there is also a desire to get back to basics. Over the past decade, electronic navigation systems on ships have become easier to use, so less training is required. He says the Navy is bringing back celestial navigation to make sure its officers understand the fundamentals. "You know, I would equate it to blindly following the navigation system in your car: If you don't have an understanding of north/south/east/west, or perhaps where you're going, it takes you to places you didn't intend to go," he says.

In fact, there has been at least one incident in the past decade when a Navy ship ran aground partly because of problems with the electronic navigation system, investigators say.

Similar systems to GPS include GLONASS [wikipedia.org], Galileo [wikipedia.org], and BeiDou/COMPASS [wikipedia.org].

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