![]() The disruption to so many critical operations would be catastrophic, costing some countries more than $1 billion USD a day. If these systems were hacked, jammed, or otherwise failed, there are no back up options. Today there are multiple satellite navigation systems such as Europe's Galileo or China's BeiDou, in addition to the original GPS constellation, but they all operate in a similar way with similar strengths and weaknesses. But are we being reckless by putting all of our eggs in one basket? ![]() ![]() ![]() It is used for personal navigation, commercial aviation, military operations, monitoring of crops and wildlife, and so much more. Life without GPS seems almost unimaginable these days. ![]()
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