[how does he go about this? -- It's a pleasanter challenge, at least.]

Well, in our world-- they're a lot larger than they look. [Ginko with his canonical knowledge of genetics and cell biology clearly knows SOMETHING about this, he shouldn't]

And probably too far away to really understand. The sun-- the light that shines during the day [no reason for you to remember what it's called, so might as well mention that] -- is a star, but close to us.

As for how... [he slouches a little and smiles] I have no idea.