More than 50 years after their discovery, the hitherto insufficient knowledge about quasars increases only gradually, as a current case study shows
A quasar is an extremely energetic and very brightly glowing region at the center of an active galaxy that owes its existence to the dynamics and appetite of a supermassive black hole. Sometimes it seems as if quasars themselves had taken their secrets into their black hole. Although nearly 500.With more than 000 of them known, astronomers around the world are guessing about their origin and true nature. While a galaxy expert draws a negative conclusion about previous quasar research, two Chinese astronomers present a new study in the current ie of Nature that may shed more light on these dazzling cosmic beacons.