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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.
18
votes
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 …