The sun is out in the day and always has a circle shape. The moon’s shape seems to change and you can sometimes see it in the daytime and at night. What are the sun and the moon? How are they the same and how do they differ? Hop into your spaceship and find out! Features a find-out-more section with instructions on how to keep an observation log and how to make moon ice, a glossary of new terms, and web research prompts.

Includes glossary.