Robert Spitzer, S.J., Ph.D. (Philosophy of Science – all 4 questions)

Michael Barber, Ph.D., John Paul the Great (Theology – Jesus)

Fr. Joseph Koterski, S.J., Ph.D., Fordham University (Philosophy – all 4 questions)

Steven Barr, Ph.D., University of Delaware (Physics – Evidence for God)

Francis Beckwith, Ph.D., Baylor University (Philosophy – Existence of God)

Michael Murray, Ph.D., KU (Physics – Evidence for God)

Robert Kurland, Ph.D., formerly Harvard and Carnegie Melon (Physics, Evidence for God)

Dr. John V. Robinson, Professor Emeritus, North Carolina State University (Nuclear Physics)