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Two teams touch down at the STARS space station to take on three scientific challenges to win out-of-this-world prizes. First, they must work out if an object is heavier or lighter than another before placing it on a giant set of scales. Then, there is a healthy eating quiz based on the food groups that make up a balanced diet. Finally, the teams must take items from a giant conveyer belt and sort them so they can be reused and recycled. To make it even trickier, the players are attached to bungee cords!

Meanwhile, Sam and Ayo have installed an update on the supercomputer – but now it won’t do what it’s supposed to do. They must fix the computer by giving it a list of coded instructions.