Book Series · 7 Books

CatStronauts Books

In order from Mission Moon to Cosmic Clutter.

Drew Brockington's spacefaring cats tackle moon missions, Mars races, robots, artificial intelligence, and orbital clutter with teamwork, science-minded problem solving, and a steady supply of puns.

Reviewed by the Bookroo Editors Updated August 11, 2026

Reading order

How to Read the CatStronauts Books

Read the seven published CatStronauts missions in numbered order, from Mission Moon through Cosmic Clutter. Each mission has its own problem, while team relationships and earlier inventions carry forward.

Module Mayhem is publisher-listed as Book #8 but is scheduled for October 13, 2026, so it is not included among the seven published books yet. Waffles and Pancake is a four-book younger spin-off about Waffles as a kitten and can be read independently.

Sources: Little, Brown's official CatStronauts list, Drew Brockington's official CatStronauts site.

For parents

What Parents Should Know

Missions involve an energy crisis, launch risks, damaged equipment, stranded robots, rivalry, artificial-intelligence trouble, and cats in space peril. The stakes create suspense, but no realistic animal harm is shown and jokes quickly relieve the tension.

The books use real space and engineering ideas loosely enough to spark questions without becoming textbooks. Busy full-color panels, acronyms, and a large team may reward rereading; teamwork and learning from mistakes matter more than technical expertise.

Where to start

Where Should My Child Start?

Ready for team missions

Start with Mission Moon for the main crew, longer missions, and the full series continuity.

Wants a younger entry point

Try Planetary-YUM for shorter adventures starring Waffles and his sister as kittens.

Where the story begins

First Book in the Series

Graphic Nov.

Sale price

$958

Book #1 · Chapter Book · Ages 7–10 · 2017

Mission Moon

By Drew Brockington

A team of cats is sent to the moon to build a solar power plant to solve the world's energy crisis

160 pages· 3,209 words· Est. 36 min read

$9.99Save 4%

Paperback

Summary: In a world plunged into darkness, the CatStronauts—led by Major Meowser—face their greatest mission: building a solar power plant on the moon. With Earth's energy crisis looming, these feline astronauts, including the hungry pilot Waffles and inventive Blanket, must navigate space's challenges. Will their teamwork and quick thinking be enough to save the planet? Join this whiskered crew on a cosmic adventure filled with humor, science, and unexpected twists. Can they light up the world before it's too late?

In reading order

Chapter Book · Ages 6–10 · 2019

A group of cat astronauts face a series of challenges on the International Space Station, including a water leak and a malfunctioning computer system.