Once again, disputes erupt among astronomers about an unusual optical phenomenon occurring around the star KIC 8462852, unofficially called Tabby in honor of the first astronomer who wrote about the anomalous luminary – Tabeti Boyadzhan. Sudden changes in the brightness of the star, which reach peak moments at up to 22 percent of the nominal, lead to the appearance of various hypotheses, including as exotic as the alien theory about the construction of the Dyson sphere. Discovered in 2009, the star KIC 8462852 is located one and a half thousand light-years away. from the Sun in the constellations Lyra and Swan. A star has a weight and a radius of more than one and a half times greater than that of our Sun. For the first time, scientists tracked unusual phenomena in 2015, when \Yale University astronomer Tabeta Boyagan pointed to an unnaturally large decrease in the intensity of light radiation detected with the Kepler telescope. Such changes in brightness usually reach one percent, while for KIC 8462852 this figure reached 22 percent. Usually skeptical of an alien version, astronomers were forced to admit that such an intense fall was possibly caused by the intervention of an extraterrestrial mind, in particular the construction of the Dyson sphere. An assumption is also made of a giant dust cloud or a mass cluster of space objects. In the middle of May of this year, there was another change in the brightness of the star, which caused renewed interest in solving the riddle. All astronomers vividly discussed the fluctuation of the light signal that occurred one and a half thousand years ago and, finally, reached the Earth. Among the fresh hypotheses trying to explain flicker, a theory appeared about the features of the trajectory and speed of rotation of the star, which can cause a significant increase in the radius of KIC 8462852 at the equator. However, a final explanation of the phenomenon has not yet been found. And the point is not skepticism at all, but the banal lack of enough data. What makes the star flicker appears briefly and disappears again for several years. But such an interesting and not yet unraveled property of KIC 8462852 attracted the close attention of many researchers and devices. Experts are confident that in the future it will help to collect more information to identify the true cause of the phenomenon.