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The Arecibo message was a message broadcast into space in 1974 to celebrate the remodeling of Puerto Rico’s Arecibo radio telescope, the world’s largest single-dish radio telescope. The message was aimed at star cluster M13, a large and relatively close star cluster some 25,000 light years away. The 210-byte message consisted of 1679 binary digits that, when arranged into 73 rows and 23 columns, form a meaningful seven-part message saying what? Discuss
Source: The Free Dictionary