If your kid or student can’t stop looking up at the stars or dreams of space adventures, finding the right book can be tough. You want something exciting, but not too complex, with relatable characters and cool science concepts—without feeling like homework.
The good news? Science fiction books for kids are better than ever. These books mix adventure, humor, and imagination while sneaking in a little science along the way. Whether they’re into epic space battles, futuristic technology, or the thrill of exploring unknown planets, these books will keep them turning pages.
Here are seven stellar picks that will fuel their imagination and launch them into an unforgettable adventure.

1. Space Case by Stuart Gibbs
Life on the moon isn’t as exciting as it sounds—until a murder mystery shakes things up. Twelve-year-old Dash Gibson lives in Moon Base Alpha, the first-ever lunar colony, but things get serious when the base’s top scientist dies under suspicious circumstances. No one believes Dash when he says it wasn’t an accident, so he takes it upon himself to investigate.
This book is a perfect mix of mystery, humor, and sci-fi adventure. The futuristic setting is packed with real science about space travel, making it fun and educational. With fast-paced storytelling, a likable main character, and plenty of twists, this book is ideal for kids who love detective stories with a space-age twist.

2. The Last Kids on Earth and the Cosmic Beyond by Max Brallier
If your kid loves laugh-out-loud humor and thrilling action, this is for them. In this installment of the popular Last Kids on Earth series, Jack and his friends battle space monsters, mutant aliens, and otherworldly threats. Their mission? Save the world—again—while dealing with hilarious mishaps and unexpected dangers.
With its mix of comics, fast-paced writing, and epic sci-fi battles, this book is perfect for kids who might not usually love reading. The characters are funny and relatable, and the adventure never slows down. It’s a great pick for fans of action-packed books who also enjoy a touch of comedy.

3. CatStronauts: Mission Moon by Drew Brockington
If your young reader loves cats and space, this graphic novel is a must-read. The CatStronauts—an elite team of astronaut cats—must save Earth by traveling to the moon. But when their mission takes an unexpected turn, teamwork and quick thinking become more important than ever.
This book is hilarious, easy to read, and full of space science concepts without being too technical. The colorful illustrations and fun dialogue make it a great choice for younger readers or those who enjoy visual storytelling. Perfect for kids who love funny, action-packed stories with a dose of adventure and some adorable feline heroes.

4. The Planet Omar Series by Zanib Mian
Omar is just a regular kid—until his imagination takes him on intergalactic adventures. Whether he’s dealing with school, friendships, or family, his wild daydreams often transport him to outer space, where he imagines himself as a daring explorer. But in reality, he has to figure out how to handle real-life challenges while keeping his feet on the ground.
This series mixes science fiction, humor, and real-life experiences, making it a fantastic choice for kids who want a relatable main character but with a sci-fi twist. With fun doodles and a lighthearted storytelling style, it’s laugh-out-loud funny and perfect for readers who enjoy books like Diary of a Wimpy Kid but want something with a bit more imagination.

5. The Jamie Drake Equation by Christopher Edge
Jamie’s dad is an astronaut on a space mission, but when Jamie accidentally picks up a strange alien signal, he realizes something big is about to happen. As he pieces together the mystery of the transmission, he starts to question what we really know about the universe—and whether we’re truly alone.
This book combines real-world space exploration with a thrilling sci-fi mystery. It’s also an emotional read that explores family, courage, and the unknown. Readers who enjoy books that mix adventure with deep, thought-provoking questions will love Jamie’s journey.

6. Cleo Porter and the Body Electric by Jake Burt
Cleo lives in a futuristic, sealed world where no one goes outside. Everything—including school—happens through screens. It’s a safe, predictable life, until one day, a mysterious package is delivered to Cleo by mistake. The package contains life-saving medicine meant for someone else, and Cleo must break the rules of her world to set things right.
This book is fast-paced, full of cool sci-fi tech, and asks big questions about the future. The story is thrilling, and Cleo is a strong, determined heroine that readers will root for. If your young reader loves dystopian sci-fi mixed with adventure, they’ll love Cleo’s story.

7. The Infinite Lives of Maisie Day by Christopher Edge
Maisie Day is a brilliant young scientist who wakes up on her tenth birthday to find herself in two different realities—one where her family is celebrating, and another where she is completely alone in a dark, empty universe. As she tries to understand what’s happening, she must use her knowledge of physics and space to solve the mystery before it’s too late.
This book blends science fiction with real scientific concepts like black holes, the multiverse, and quantum physics in a way that’s both thrilling and thought-provoking. It’s perfect for young readers who love mind-bending mysteries and stories that make them think about the universe in a whole new way.
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