When it comes to the existence of intelligent life beyond Earth, there’s a big question that remains unanswered: why haven’t we seen any evidence yet? Now, though, a group of scientists are attempting to do just that, with the launch of a groundbreaking, galaxy-spanning search for giant extraterrestrial civilisations.

Researchers from the SETI Institute (Search for Extraterrestrial Intelligence) recently announced the first-ever extragalactic search for

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