XMM-2599 (IMAGE) W. M. Keck Observatory Caption This image set shows the possible evolution of XMM-2599, from a massive, dusty, star-forming galaxy (left), to an inactive red galaxy (center), and then perhaps turning into a bright cluster galaxy (right). Credit CREDIT: NRAO/AUI/NSF, B. SAXTON; NASA/ESA/R. FOLEY; NASA/ESA/STSCI, M. POSTMAN/CLASH 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.