In 1974, the famous Arecibo Message was sent into space, humanity's first and only attempt at messaging extraterrestrial intelligence. The post What is the Arecibo Message? appeared first on Universe Today.
In 1974, the famous Arecibo Message was sent into space, humanity's first and only attempt at messaging extraterrestrial intelligence. The post What is the Arecibo Message? appeared first on Universe Today.
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