Dear Watchers,

To know something well, you have to give it a lot of attention. You have to watch to see how it changes over time. To know a thing well, you have to keep track of it.

If you want to know your life well, you keep a diary. If you want to know a football team well, you compile their statistics. And if you want to know the night sky well, you spend a few minutes each night looking at it and recording what you see.

We’re going to begin this last one today. Find a time each night when you can spend a few minutes observing the night sky. What can you see? And how does it change from night to night?

Sincerely,

Mr. Heimbuck