The 'Tianguan' satellite 'sees' mysterious flashes of cosmic light, refreshing people's understanding of galaxy evolution. The Astrophysical Journal Letters reported on the 19th that the "Tianguan" satellite captured a rare X-ray binary system in the nearby Small Magellanic Cloud. This discovery opens up new avenues for exploring the interactions and evolution of massive stars, confirming the satellite's unique ability to capture fleeting new X-ray sources in the universe. It is reported that the binary system consists of a Be type large star and a white dwarf star. Among them, the mass of Be type large stars is 12 times that of the Sun, and the mass of white dwarfs is equivalent to that of the Sun. This type of binary star system is extremely rare in the scientific community, and this observation is the first time scientists have tracked the entire process of this peculiar binary star system from X-ray burst to gradual decay. This X-ray burst can only be captured by the 'Tianguan' satellite. Because the wide field X-ray telescope carried by the satellite is currently the only telescope capable of detecting low-energy X-rays with sufficient sensitivity Dr. Lucio Marino from the Spanish Institute of Space Science said. Initially, researchers believed that this binary system could be a common X-ray binary system, composed of a neutron star devouring the material of its massive stellar companion. However, further data analysis revealed a different truth. Researchers have confirmed the true identity of this pair of celestial bodies by analyzing changes in X-rays within different wavelength ranges, as well as the presence of elements such as nitrogen, oxygen, and neon in the explosive material. Yuan Weimin, the chief scientist of the "Tianguan" satellite and a researcher at the National Astronomical Observatory of the Chinese Academy of Sciences, said that the new discovery of the "Tianguan" satellite not only enhanced China's influence in the field of international space science, but also provided important X-ray data support for global astronomical research, strongly promoting the observation and research development of high-energy time-domain astronomy. (New Society)