FAST telescope detects mysterious signal from K2-155 system

Astronomers surveyed 33 planetary systems in search of traces of extraterrestrial technology. One signal stood out among all observations — coming from the direction of the red dwarf K2-155, located about 238 light-years from Earth. The signal was received by China's FAST radio telescope, the world's largest single-dish radio telescope. Scientists have not yet confirmed its source.