The team of the international project Breakthrough Listen reviewed several petabytes of data, among which detected 11 events that are likely to be a manifestation of the activities of extraterrestrial civilizations. About it reported in a press release received by the editors".ru".
Analyzed the data available for universal viewing and analysis. Information obtained through ground-based telescopes GBT (Green Bank Radio Telescope, USA), Observatory'Lick's Automated Planet Finder (USA) and Parkes Radio Telescope (Australia). Data analysis carried out by the participants of the SETI project (Search for Extraterrestrial Intelligence, USA).
Artificial signals according to the authors, differ from the natural features of such radiation, narrow bandwidth irregular spectral patterns of behavior, ripple, or modulation, as well as the presence of broadband spectra with unusual characteristics. Scientists developed algorithms that allow to distinguish between the earth (including from artificial satellites of a planet) and extraterrestrial signals and track, in the latter case, its position on the celestial sphere.
Scientists say that it is unlikely that any of the 11 most unusual detected signals belonged to an alien civilization, although this is not excluded.
Program Breakthrough Listen is the largest project to search for signals from alien civilizations. Launched in the summer of 2015 on the initiative of Russian billionaire Yuri Milner and the British scientist Stephen Hawking.
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