Supermassive Black Hole within M60-UCD1 (IMAGE) ESA/Hubble Information Centre Caption This is an illustration of the supermassive black hole located in the middle of the very dense galaxy M60-UCD1. It weighs as much as 21 million times the mass of our Sun. Credit NASA, ESA, D. Coe, G. Bacon (STScI) Usage Restrictions None License Licensed 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.