Beyond The Sky The Great Space Clen-Up Beyond the Sky The great space clean-up An inspiring and educational book on space junk. For children and grownups. This book will take you on a journey 180 million kilometres from planet Earth. You will meet Qi and Ra, two friends who live on a tiny asteroid and are forced to deal with space junk. Disused satellites, empty rocket-fuel tanks, tools such as hammers, screwdrivers … even shoes, towels and empty food packaging … All human-made objects which for centuries will remain in space and will trash Qi and Ra’s world.