Get a closer look at Jupiter and its moons in this action-packed adventure story. Blast-off into space in this second adventure with The Secret Explorers, a brand-new fiction series. 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.