Researchers Unmask Black Hole (IMAGE) Clemson University Caption The ultraluminous X-ray source studied by Clemson astrophysicists lies deep in the heart of the Andromeda galaxy, about 2.6 million light-years from Earth. Credit XMM-Newton observatory 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.