An Open Inquiry: Catholic Thought on Extraterrestrial Life Across the Centuries

To the point

Catholic thought has long debated whether intelligent life could exist beyond Earth, tracing discussions from Clement of Rome and Origen to Nicholas of Cusa and Thomas Aquinas, and today the Church maintains that belief in extraterrestrial life can harmonize with faith and science and invites ongoing, rigorous inquiry rather than denial.

Extraterrestrial Intelligence and the Catholic Faith: A Brief History of an Ancient Conversation - The Society of Catholic Scientists
catholicscientists.org

Extraterrestrial Intelligence and the Catholic Faith: A Brief History of an Ancient Conversation - The Society of Catholic Scientists

The idea that there may be intelligent life in other parts of the universe has been discussed by Christians for many centuries.