There's something magical about the moon. We humans have always felt an affinity for it, that light in the sky. It has kept us company for centuries on lonely dark nights. Maybe we don't think about it so much anymore in this country, now that we have electric lights and good roofs over our heads most of the time. But when I was a kid, it seemed like people talked about the moon all the time. I remember watching the first moon walks in a grainy black and white image. You'll remember this for the rest of your life, my father told me. And now I can watch it on YouTube, too, whenever I want, which is kind of amazing.