8 planets in our solar system

The Magic School Bus Lost in the Solar System - by Bruce Degen & Joanna Cole (Mixed Media Product)

Dwarf Planets - (Space Wonders) by Joanne Mattern (Paperback)

A Traveler's Guide to the Stars - by Les Johnson

Mars (Paperback) by Elizabeth Carney

Lonely Planet Kids the Big Book of Train Activities - by Laura Baker (Paperback)

Lonely Planet Kids First Words - French

Professor Astro Cat's Solar System - by Dominic Walliman (Hardcover)

Our Moon - by Rebecca Boyle (Paperback)

National Geographic Stargazer's Atlas - by National Geographic & Maya Wei-Haas & James Trefil & Michael Greshko & Rachel Brown & Andrew Fazekas

The Fly Who Flew to Space - by Lauren Sánchez Bezos (Hardcover)

Good Golden Sun - by Brendan Wenzel (Hardcover)

A Brief History of Time - 10th Edition by Stephen Hawking (Paperback)

Eyewitness Planets - (DK Eyewitness) by DK (Hardcover)

The Brightness Between Us - (Darkness Outside Us Saga) by Eliot Schrefer (Hardcover)

Build Your Own Solar System - by Lauren Fairgrieve (Hardcover)

Just Visiting This Planet, Revised and Updated for the Twenty-First Century - by Neil Degrasse Tyson (Hardcover)

Inside Out Solar System - (Inside Out, Chartwell) by Editors of Chartwell Books (Board Book)

The Sun Is Kind of a Big Deal - by Nick Seluk (Hardcover)

Lonely Planet Kids Seek and Find Cities - by Kate Baker (Paperback)

Solar System for Kids - (Junior Scientists) by Hilary Statum

Explore the Solar System: Lift-The-Flap Book - (Funfacts) (Hardcover)

A Crack in Everything - by Marcus Chown

Earth Day Every Day - (Cloverleaf Books (TM) -- Planet Protectors) by Lisa Bullard (Paperback)

The Buddy System - by Sam Wedelich (Hardcover)