Every saga has a beginning: philosophical cosmologies in the ancient world -- The voyage home: cosmos in early Christian thought -- Resistance is futile: Galileo, Newton, and Darwin -- All these worlds: on the multiverse -- If it's just us, it seems like an awful waste of space: on human uniqueness -- Infinite space, infinite terror: our cosmic (in)significance -- In space no one can hear you scream? God and being -- There is no gene for the human spirit: images of God -- Come with me if you want to live: incarnations -- To boldly go: beings in search of greater understanding.