I was reading Becky’s beautiful book (Our Moon, you know the one, lead review in the NYTimes Book Review, longlisted for the National Book Award) and she was talking about how ancient people figured out amazing things about the moon. And by the way, ancient people figured out amazing things in general, like the circumference of the earth and the existence of atoms, getting it wrong half the time and the other half, stunningly right. I mean, left to me, humanity would never know the stars w...