The Hunt for Alien Megastructures
When most people think about searching for extraterrestrial intelligences, they imagine someone like Ellie Arroway searching the skies for radio transmissions. But what about looking in other ways? Perhaps a highly advanced alien civilisation might build structures large enough for us to see. Top image: A depiction of Larry Niven’s Ringworld. Credit: Hill/Wikimedia Commons Vast…
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Markus Hammonds - Universe Today