Michael Heller is a professor of philosophy at the Pontifical Academy of Theology in Cracow, Poland, and an adjunct member of the staff of the Vatican Observatory. A Roman Catholic priest, Dr. Heller was ordained in 1959. He was graduated from the Catholic University of Lublin, where he earned a master's degree in philosophy and a Ph.D. in cosmology in 1966. After beginning his teaching career at the Theological Institute in Tarnow, he joined the faculty of the Pontifical Academy of Theology in 1972 and was appointed to a full professorship in 1985. The recipient of an honorary degree from the Cracow University of Technology, he has been a visiting professor at the Catholic University of Louvain in Belgium and a visiting scientist at Belgium's Licge University, Oxford University, Leicester University, Ruhr University in Germany, The Catholic University of America, and the University of Arizona. Dr. Heller is a member of the Pontifical Academy of Sciences and a founding member of the International Society for Science and Religion, as well as a member of the board of advisors of the John Templeton Foundation. His current research is concerned with the singularity problem in relativistic cosmology and the use of noncommutative geometry in seeking the unification of general relativity and quantum mechanics. He has published some 200 scientific papers, not only in general relativity and relativistic cosmology but also in philosophy and the history of science and science and theology, and is the author of more than twenty books, including Is Physics an Art? (1998). In his most recent volume, Creative Tension (Templeton Foundation Press, 2003), he explores the encounter of theology and science when theology reflects upon creation and science tries to decipher the structure of the universe.