[Music] [Applause] So, I'm going to talk to you today about something you've all known of since you've entered into this world. You see it every day. Your parents and their parents and their parents for thousands of generations have known of it, too. and your future generations for thousands of years to come will also relate to it.And yet you likely know or care very little about it. And I'm going to change that. It is of course the moon that I'm talking about.So before I get started, I'll share some contex ...