Former high school enemies Solara Brooks and Doran Spaulding must team up when they find themselves aboard a renegade spaceship.

Professor Albert Hopper, frog and Science Hero, travels with his niece Polly and nephew Tad throughout the solar system, exploring the sun, aster

"The Navy has never accepted a Belter cadet before, but Lucas' skills secure him a place on the training ship, the Orpheus. Life in the Navy coul

"The planet Kerenza is attacked, and Kady and Ezra find themselves on a space fleet fleeing the enemy, while their ship's artificial intelligence

"For Jessica Mathers, teleportation and planetary colonization in deep space aren't just hypotheticals--they're real. They're also the very real

To save his father, a Coalition scientist protecting a precious resource, after their ship is attacked, Leo stows away on a strange ship of merce

After looking up information about dinosaurs on his computer, Patrick is awakened by a dinosaur who arrives in a spaceship to take Patrick to his

Sixteen-year-olds Noa, DJ, and Jenny awake on a spaceship, unaware of how they got there or what is coming, but soon Noa and DJ are falling in lo

Sisters Jessa and Oona, and new friend Ram Sam Sam, try to stop the Cobalt Prince from Toki, who orders a strike on Mon Domani, starting a new wa

Skippyjon Jones, the Siamese cat that thinks he is a Chihuahua dog, has an adventure on Mars.

Andy and Terry live in a 130-story treehouse. It used to be a 117-story treehouse, but they added another 13 stories. It has a soap bubble blaste

Thirteen-year-old Rigg has a secret ability to see the paths of others' pasts, but revelations after his father's death set him on a dangerous qu