Quasar (image) Dartmouth College Caption This is an artist's rendering of ULAS J1120+0641, a quasar that is powered by a black hole with a mass 2 billion times that of the sun. Credit ESO/M. Kornmesser Usage Restrictions None 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.