From antiquity to the present, humans have debated whether intelligent life exists elsewhere in the universe. This presentation will survey this debate, examining the roles played in it by science, religion, philosophy, and other areas of human learning. One thesis that will be developed is that whether or not extraterrestrials exist, ideas about them have strongly influenced Western thought.

Comparison of the concepts of creation from chaos and creation out of nothing (creatio ex nihilo) leads me to reject the latter for several reasons: it is not the biblical concept, and it presents serious conceptual, scientific, and theological problems. Chaos theology is outlined under the headings creation from chaos; chaos and contingency; chaos, evil, and creativity; chaos and incarnation; chaos and eschatology. It is shown to be well suited for the science‐theology dialogue by some examples of its application to (...) aspects of cosmic and biological evolution: initial mystery, separation and ordering; chaos and entropy; contingency and fine‐tuning of the universe; purpose and progressiveness in evolution; and complexity theory and chaos events. (shrink)

This work contains the Gifford Lectures delivered in the University of Glasgow in the academic years 1932-1933 and 1933-1934.