Kwok-Yung Lo (also called Fred K.Y. Lo) obtained a B.S. in Physics (1969) and a Ph.D. in Physics (1974) from MIT. Lo joined the California Institute of Technology in 1974 as a Research Fellow but left in 1976 to take up a Miller Fellowship at UC Berkeley. Two years later he returned to Caltech as a Senior Research Fellow and was appointed Assistant Professor of Astronomy in 1980. Lo played a key role in the early construction of Caltech's Owens Valley Millimeter Wave Array, which eventually led to the Megamaser Cosmology Project. In 1986, Lo joined the University of Illinois Astronomy Department as a full professor. There, he established a mm/submm receiver laboratory in collaboration with the Illinois solid state physics program. He served as Distinguished Research Fellow and Director of Academia Sinica's Institute of Astronomy and Astrophysics (ASIAA) from 1997 to 2002. Lo also became Director and Distinguished Astronomer at NRAO from 2002 to 2012.