Alley was recruited to the University of Maryland, College Park Campus, by John S. Toll, then-chair of the Department of Physics and Astronomy. For most of his career—more than 40 years—Alley served as professor of physics and director of the Quantum Electronics Research Group at the University of Maryland. He taught and conducted research at Maryland from 1963 to 2008, at which time he was granted Professor Emeritus status—a post he held until his death on February 24, 2016. References External links Carroll Alley's University of Maryland page Research group at University of Maryland Oral History interview transcript with Carroll O. Alley on 19 May 2006, American Institute of Physics, Niels Bohr Library and Archives http://www.lpi.usra.edu/lunar/missions/apollo/apollo_11/experiments/lrr/ http://www.jpl.nasa.gov/news/news.php?feature=605 http://ilrs.gsfc.nasa.gov/science/scienceContributions/lunar.html https://umdphysics.umd.edu/about-us/news/department-news/1128-carroll-alley-june-13-1927-february-24-2016.html#!Alley_Lunar_Laser_Ranging_Retroreflector_1. https://umdphysics.umd.edu/images/alley-memorial/AlleyRemembrances.pdf https://www.nasa.gov/feature/pioneering-physicist-carroll-alley-dies American physicists University of Maryland, College Park faculty 2016 deaths 1927 births