Its behaviour is extraordinary. It has rapid, random bursts where its brightness drops dramatically and then returns. There is no other star like this in our galaxy. Boyajian's star was studied in detail by the Kepler space observatory in 2012 when its erratic behaviour was first uncovered.
Most attention went to the theory proposed by scientists at Penn State University that the eclipsing mass around Boyajian's star could be a huge alien megastructure. Humanity could become radio-quiet in about 50 years, and that will probably be true for civilizations on other worlds.
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