Vivienne Machi is the military space editor for Aviation Week. She has written about U.S. and international military and space tech for nearly a decade from Los Angeles, Washington and Stuttgart, Germany. Her byline has appeared in outlets including Defense News, Via Satellite, Foreign Policy, Defense Daily, National Defense Magazine and Business Insider.
The GPS signals on satellites are being jammed from terrestrial sources at growing rates, and the demand for alternate options for position, navigation and timing is burgeoning.
