Earth’s position in the universe and its intricately choreographed geological and chemical processes work together with exquisite efficiency to create a safe place for humans to live. For example, astronomer Guillermo Gonzalez and science philosopher Jay Wesley Richards said it would take a star with the highly unusual properties of our sun — the right mass, the right light, the right age, the right distance, the right orbit, the right galaxy, the right location — to nurture living organisms on a circling planet.
