Although reluctant at first, the second graders in Mr. Hopper's class follow new student Luna's suggestion and perform as stars in a "midnight circus" on Family Night.

"Nine-year-old Julian almost died when he was born and he believes that he has a special connection to the universe because of that, and he wants to make his two moms and his sister (who turned into a black hole of discontentment when she turned fourteen) happy because he is convinced that soon he will die and travel to the dog star--but now they have moved to Maine and he resolves to also use his "uni-sense" ability to help Mr. X, their neighbor,...

With Squeep's help, Hap Conklin, eleven, faces his fear of talking to the new girl at school but also opens a black hole and uncovers information about his grandmother's next evil plan.

Max and his older brother Pete learn about stars, planets, and galaxies when their father takes them to an astronomical observatory.

"What is the most important thing to remember about stargazing? When to do it, who to do it with, what to look for? It's none of those! This picture book's spare, lyrical text offers many possible ways to do stargazing: with a friend, with family, or alone; on a moonless night, or with a full moon, or even with some clouds; on the beach, lying in the grass, or standing on a snowy hill. There is only one rule of stargazing, which is saved for the end,...

Mr. Kazarian's evil cousin Kronkhold has a black hole generator, and it is up to the alien librarian and the four students who know his secret to stop Kronkhold before his device swallows Earth, and the rest of the solar system--and get back to Earth in time for TJ, Dani, Shea, and Walden to make their class presentation on Albert Einstein.