Presentation of the Mariano Artigas Memorial Lecture 2019, John Hedley Brooke. Pamplona, October 15, 2019. John Hedley Brooke is Emeritus Professor of History of Science at Lancaster University. Member of the International Academy of the History of Science. Andreas Idreos Professor of Science and Religion at The University of Oxford. Director of the Ian Ramsey Centre, and Fellow of Harris Manchester College, Oxford. More information at https://en.wikipedia.org/wiki/John_Hedley_Brooke Abstract I intend to engage with three issues that were of particular interest to Professor Artigas: the degree to which there is inherent conflict between religious faith and the methods of science; the relative importance of science in processes of secularisation; and the complexity of the inter-relations between scientific thought and religious belief. After drawing on historical examples to illustrate different reasons for the complexity, I shall conclude with a brief discussion of three scientific topics of contemporary concern: global warming, the prospect of extra-terrestrial life, and advances in the development of artificial intelligence. In each case I shall suggest that the call for wider public consultation to address the associated ethical issues provides an opportunity for religious leaders to capitalise on the resources of their respective faith traditions.