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flag Chinese scientists achieved a stable, high-speed laser link with a geosynchronous satellite, enabling real-time data transmission over 40,000 km.

flag Chinese researchers have achieved a major breakthrough in satellite communication by establishing a stable, two-way laser link between a geosynchronous satellite and a ground station in Yunnan Province, transmitting data at 1 gigabit per second over more than 40,000 kilometers. flag The connection, set up in just four seconds and maintained for over three hours, marks a significant leap from previous minute-level durations. flag The success demonstrates reliable high-speed, real-time communication in high-orbit environments, enabling satellites to receive complex commands and act as intelligent processing nodes. flag The technology, now considered mature, supports the development of integrated earth-space networks and has potential for future deep-space missions to the Moon and Mars.

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