Stephen Barr, Ph.D.

Stephen M. Barr, Ph.D. is President of the Society of Catholic Scientists and Professor Emeritus of theoretical particle physics at the University of Delaware. He received his Ph.D. from Princeton University in 1978. His research has centered mainly on “grand unified theories” and the cosmology of the early universe. In 2011, he was elected to be a Fellow of the American Physical Society “for his original contributions to grand unification, CP violation, and baryogenesis”.

He writes and lectures extensively on the relation of science and religion. He is the author of Modern Physics and Ancient Faith (Univ. of Notre Dame Press, 2003) and The Believing Scientist: essays on science and religion (Eerdmans, 2016). He was elected in 2010 to the Academy of Catholic Theology and was awarded the Benemerenti Medal by Pope Benedict XVI.