High Quality Content by WIKIPEDIA articles! Andrew E. Lange (July 23, 1957 – January 22, 2010) was an astrophysicist and Goldberger Professor of Physics at the California Institute of Technology in Pasadena, California. Lange came to Caltech in 1993 and was most recently the chair of the Division of Physics, Mathematics and Astronomy. Caltech`s president Jean-Lou Chameau called him "a truly great physicist and astronomer who had made seminal discoveries in observational cosmology".