Astronomers found a supermassive black hole in an active galactic nucleus producing rapid and periodic eruptions of X-rays every nine hours. The nucleus contains about 400 000 times the mass of the Sun and is about 250 million light-years from Earth. According to a…… Read more »
Click here for original story, First detection of strong, rapid and regular X-ray bursts from a supermassive black hole
Source: The Watchers » Space News