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Thursday, September 12, 2013

Searching for the ruins of alien civilisations

Searching for the ruins of alien civilisations – Paul Gilster – Aeon: "Scientists used to scan the skies for messages from alien civilisations. Now they go looking for their ruins"

'When interstellar archaeologists tilt their telescopes to the sky, they are gazing into the deep history of the cosmos, but to find a civilization more advanced than ours, they have to tilt their imaginations into the future'. Photo courtesy W. M. Keck Observatory, Hawaii
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