China has conducted a pioneering high-speed communication experiment using lasers, rather than the usual radio signals, between satellites in its BeiDou navigation system and ground stations on Earth.The method could allow a satellite to beam data to the ground at several gigabytes per second, rather than kilobytes at present, according to researchers involved. BeiDou’s fastest communication performance in the experiment remains classified.China and the United States are in an intense race to…

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