Rosalina's Storybook

Rosalina's Storybook is a book in Super Mario Galaxy. While it is never explicitly said, it is the story of how Rosalina made it into outer space and how she became the "mother" of Lumas. In the Comet Observatory's Library, Rosalina sometimes reads from the storybook to the Lumas traveling with her. Mario/Luigi can come in to listen to the story. In all, the storybook contains nine chapters.

Yoshiaki Koizumi, director of Super Mario Galaxy, was the writer of the storybook. He wrote the script late at night when no one was around so no one would know what was in it. The next day, he told Shigeru Miyamoto about the story and presented it to him. Miyamoto was surprised that Yoshiaki wrote the script late at night with nobody around. Yoshiaki Koizumi, in Nintendo Power, mentions that he would enjoy seeing Rosalina's Storybook get published as a children's book. He also mentions that someone at Nintendo has actually made one copy of the storybook for himself.

Story
After Mario enters the library, Rosalina will begin to read the following story.