Extraterrestrial Intelligence and the Catholic Faith: Are We Alone in the Universe with God and the Angels?

To the point

Paul Thigpen explains how Catholic thought—from Plato and John Chrysostom to Descartes, Newton, Réginald Garrigou-Lagrange, and C. S. Lewis, with saints John Paul II, Padre Pio, and Blessed Anne Catherine Emmerich—addresses the possibility of intelligent extraterrestrial life, applying Scripture and church teaching to questions of potential deception, the spiritual status and Christological relation of aliens, and whether discovering ETI would strengthen or challenge Christian faith, with an appendix on UFO speculation.