For a day and a half, Pete Conrad and I had the Moon to ourselves. It brought to mind a question humans have asked through the centuries: Are we all alone in the cosmos? One day I turned and looked out to infinity. The sky was as black and shiny as the patent-leather shoes I wore to Sunday school as a boy. Inside my head, I asked: “Is anyone out there? Is there an all-knowing, all-powerful being out there who is in charge of the universe?” I didn’t have any flash of enlightenment that day, but have come to believe the answer is in the heart of each person.