The James Webb Space Telescope has captured a mid-infrared picture of Sagittarius A*, filling in a long-standing gap in ...
Active galactic nuclei are supermassive black holes at the center of certain galaxies. As matter falls into these black holes ...
Scientists have detected emanating from the nucleus of a galaxy relatively close to our Milky Way flashes of X-rays gradually ...
NASA's Chandra and NuSTAR telescopes have teamed up to study a supermassive black hole-powered quasar that could have played ...
Black holes themselves emit no light, but the supermassive black holes at the centers of galaxies are often surrounded by ...