Icko Iben, Jr is Emeritus Distinguished Professor of Astronomy and Physics at the University of Illinois, Urbana-Champaign, where he also gained his MS and PhD degrees in Physics and where a Distinguished Lectureship in his name was established in 1998. He initiated his teaching career at Williams College (1958–1961), engaged in astrophysics research as a Senior Research Fellow at the California Institute of Technology (1961–1964), and continued his teaching career at the Massachusetts Institute of Technology (1964–1972) and the University of Illinois (1972–1999). He has held visiting Professorships at over a dozen institutions, including Harvard University, the University of California, Santa Cruz, the University of Bologna, Italy and Niigata University, Japan. He was elected to the US National Academy of Sciences in 1985 and his awards include the Russell Lectureship of the American Astronomical Society (1989), the George Darwin Lectureship (1984) and the Eddington Medal (1990) of the Royal Astronomical Society, and the Eminent Scientist Award of the Japan Society for the Promotion of Science (2003–2004).