We are essentially alone in a vast, beautiful, and magnificent cosmos. The life that teems on our own blue planet, and its representatives in the fossil record, is exceptionally special. The story of planet Earth is a narrative stitched together over 4 billion years, full of major altercations and near-misses superimposed on a gradual drift of environmental change. Yet somehow life has survived. Oasis Earth is a rational enquiry into key questions about the origins, purpose, and destiny of life on Earth, using an approach by the author that is built upon a career as a leading Earth scientist and a life as a Christian believer. This approach treats both science and religion with equal respect and shows that conflict is not inevitable between Christian faith (as a guide to how to live life and relate to others) and scientific principles (with which to understand the mechanics of the physical world).