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Search for Extraterrestrial Intelligence, an organization that scans the sky for signs of non-human technology. Study has focused on analysis of the radio spectrum of other stars, but also involves other approaches.

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Why aren't we using neutrino emissions to detect alien civilizations?

Neutrinos are difficult to detect. Much of neutrino physics starts with a gazillion neutrinos and hopes to detect a few interactions. These guys published a rough map of terrestrial emissions from all …
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