Imagine beaming a high-definition movie across the globe in less than five seconds using a laser as weak as a night-light. This seemingly sci-fi scenario just became reality: from a geostationary orbit 36,000 km above Earth, a Chinese satellite used a mere 2-watt laser to transmit data to the ground at 1 gigabit per second…
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A Chinese team has just fired a laser “no brighter than a candle” from geostationary orbit (GEO) and moved one gigabit of data per second—roughly five times what Starlink typically delivers—proving that low‑power optical links can beat today’s largest low‑Earth‑orbit (LEO) constellation on both speed and altitude. Behind the headline is a deeper story of adaptive‑optics wizardry (the…
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