An artist’s impression of a quasar (IMAGE) Ehime University Caption A supermassive black hole (SMBH; the small black dot at the center) absorbs surrounding material, which forms a spiral disk-like shape as it flows in. The gravitational energy of the material is converted to radiation and emitted away from the disk. SMBHs with such shining outskirts are called “quasars”. Credit Yoshiki Matsuoka Usage Restrictions Please get copyright permission License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.