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New Study: 1 in 100,000 Galaxies May Host Aliens

10/2/2025

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Summary

Story summary

Since 1960, scientists have searched for extraterrestrial intelligence, beginning with Project Ozma.
Launched in 2016, Breakthrough Listen is a Search for Extraterrestrial Intelligence (SETI) project using radio and visible-light observations.
Brian C. Lacki's paper analyzes radio-bright galaxies as indicators of advanced civilizations and estimates that about one in 100,000 Milky Way-like galaxies could host them.

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Story summary

Since 1960, scientists have searched for extraterrestrial intelligence, beginning with Project Ozma.
Launched in 2016, Breakthrough Listen is a Search for Extraterrestrial Intelligence (SETI) project using radio and visible-light observations.
Brian C. Lacki's paper analyzes radio-bright galaxies as indicators of advanced civilizations and estimates that about one in 100,000 Milky Way-like galaxies could host them.