Owen Gingerich is Professor Emeritus of Astronomy and of the History of Science at Harvard University and a senior astronomer emeritus at the Smithsonian Astrophysical Observatory. His research interests have ranged from the recomputation of an ancient Babylonian mathematical table to the interpretation of stellar spectra. Professor Gingerich is the co-author of two successive standard models for the solar atmosphere and is a leading authority on the astronomers Nicolaus Copernicus and Johannes Kepler. He has been vice president of the American Philosophical Society and has served as chairman of the U.S. National Committee of the International Astronomical Union, and a councilor of the American Astronomical Society (AAS), for which he helped organize its Historical Astronomy Division (HAD). Awards to Dr. Gingerich include the HAD's Doggett Prize for his contribution to the history of astronomy (2000), the AAS Education Prize (2004), and the Harvard-Radcliffe Phi Beta Kappa Prize for excellence in teaching (1984). He has given two Advent sermons at the National Cathedral. Dr. Gingerich has written over 600 technical or educational articles and reviews. His most recent books are The Book Nobody Read: Chasing the Revolutions of Nicolaus Copernicus (Walker & Co., 2004) and God's Universe (Harvard, 2006).