Inspired by the Voyager missions, CBeebies Stargazing: Space Explorers takes pre-schoolers on a journey of discovery through the Solar System. Robert the Robot tells Chris, Maggie and the Stargazers that the next stop on their journey is Uranus. Maggie explains that it took Voyager 2 five years to make the journey from Saturn to Uranus – it’s nearly three billion kilometres away from earth!