Books About Interplanetary Travel

The Best Interplanetary Travel Books for Kids

Looking for excellent children's books about interplanetary travel? This collection brings together Bookroo's highest-rated and most useful picks in one place.

Start with our editorial favorites, then browse recommendations organized by reading stage to find the right book for your reader.

The Shortlist

Our 3 Favorite Books About Interplanetary Travel

The Emerald Gate
Graphic Nov.
Sale price
$1348
Chapter Book · Ages 8–12 · 2022

The Emerald Gate

By Mark Siegel, Alexis Siegel, Xanthe Bouma (Illustrator), Matt Rockefeller (Illustrator), Boya Sun (Illustrator) · Book #5 in the 5 Worlds series

Oona must light the last beacon to save the 5 Worlds from impending doom.

272 pages· 6,931 words· Est. 1.5 hour read
4.3 Goodreads · 1,567 ratings
$13.99Save 4%
Paperback
Summary: In the thrilling finale of the 5 Worlds series, Oona, Jax, and An Tzu venture to the perilous world of Grimbo. Oona's mission: ignite the final beacon to save their universe. But with Stan Moon's dark powers rising and a potential betrayal looming, can Oona trust her friends? As danger intensifies on this mysterious, watery planet, the fate of the 5 Worlds hangs in the balance. Will Oona's courage and determination be enough to overcome the ultimate challenge, or will darkness prevail?
Realm of the Blue Mist
Graphic Nov.
Sale price
$1248
Chapter Book · Ages 8–12 · 2022

Realm of the Blue Mist

A girl seeks the truth about her father's death in a magical world under threat.

272 pages· 9,030 words· Est. 1.5 hour read
4.1 Goodreads · 1,957 ratings
$12.99Save 4%
Paperback
Summary: Tabby Simon's quest to uncover her father's mysterious death leads her to Rema, a magical realm besieged by a resource-hungry planet. There, she meets Philip, a blue-haired boy with secrets of his own, who vows to help her return home. As Tabby delves deeper into Rema's mysteries, she uncovers a destiny far beyond her wildest dreams. Can she unravel the truth and find her place in this enchanting yet perilous world?
The Surprise Sleepover
Sale price
$574
Chapter Book · Ages 6–8 · 2023

The Surprise Sleepover

By A.I. Newton, Alan Brown (Illustrator) · Book #10 in the The Alien Next Door series

An alien's last Earth adventure: a sleepover before farewell.

112 pages· 5,887 words· Est. 1 hour read
4.2 Goodreads · 44 ratings
$5.99Save 4%
Paperback
Summary: Harris, Roxy, and their alien friend Zeke return to Earth, but Zeke's time is running out. Before he leaves for Tragas, they introduce him to one final human tradition: the sleepover. As Zeke's parents recharge their ship, the friends savor their last moments together. Will this farewell be the end, or just the beginning of new adventures? Discover the magic of friendship and the bittersweet nature of goodbyes in this heartwarming tale.