Note the similarity in how humans communicate across time via star maps: (L) stone tablet from 650 BC library of King Ashurbanipal in Nineveh, Iraq. (R) Voyager record from 1970s now traversing space on the twin Voyagers.

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SETI: Hunt for Technosignatures – a Reanalysis of Data

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why searching for is Important? — most cost-effective way to search for in the
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