Dawn Erb, W. M. Keck Observatory (IMAGE) W. M. Keck Observatory Caption Astronomer Dawn Erb, PhD, University of Wisconsin-Milwaukee, has devoted her life to uncovering the secrets of galaxy growth and evolution. Credit Troye Fox, UWM 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.