Geronimo Stilton meets outer space in this cosmically fun spin-off series! Geronimo Stiltonix and his crew head to the planet Jurassix to warn its inhabitants of a giant comet heading straight toward them! But the creatures there turn out to be ferocious, dinosaur-like beasts . . . who like to eat rodents. Squeak! Can the spacemice save these aliens and still make it out alive?

"In The Secret Explorers and the Comet Collision, space expert Roshni leads a mission that's out of this world - literally! With rainforest expert Ollie, she is set the task of fixing the space probe orbiting Jupiter before a comet hits the planet. With the clock ticking, it's a race against time for the Secret Explorers as they dodge asteroids, complete daring spacewalks, and use all their skills to complete their mission."--Amazon.com.

"It is Earth year 2256--but the fate of the few who even remember Earth is perilously in doubt. Mina Saunders-Chang and many of the surviving humans are stranded in the Centauri system, having barely survived their confrontation with the Telphon refugees. Now everyone--human and Telphon alike--is caught in the blast zone of the Centauri supernova. And yet there's only one question Mina is asking: Where are Liam and Phoebe? Having barely made it through...

Bub and Chub take trips on their ships, in space and on the sea.

"Count down to blastoff as an outer space boy gathers his belongings in preparation to depart his home world for a new planet."--Amazon.

Garmann makes friends with Johanna, the twin sister of the girl who torments him at school, when they discover that they both love adventures and talking about outer space.

Gail, an adventurous snail, is willing to do what it takes to achieve her dream of traveling to outer space.

Young Arthur Mumby, his sister Myrtle, and their mother accept an invitation to take a holiday at an up-and-coming resort in the asteroid belt, where they become involved in a dastardly plot involving spies, time travel, and mind-altering clothing.

Derrick, Samantha and Michael should be in school. Instead they find themselves in NASA's space shuttle, which Nanny Piggins manages to accidentally launch, blasting them all into outer space. This time she has gone too far!