
If you’ve ever been out at sea, you may be aware that it’s near impossible to catch a good signal on your phone. Instead, seafarers rely on radio-frequency-based systems to communicate with other ships—a method with many advantages but potential shortcomings for more discreet, sensitive missions.
But a new technology developed by Astrolight, a Lithuanian space and defense tech company, proposes to switch out radio for lasers, which the company calls a “secure, optical” tool for marine…

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