"Following the success of the 'Astro Pi' competition, there is a new competition offering UK school children the chance to send their computer code to ESA astronaut Tim Peake on the International Space Station (ISS). Two augmented Raspberry Pi computers, called Astro Pis, are on board the ISS as part of ESA astronaut Tim Peake's Principia mission. Both are equipped with different cameras and a range of sensors that the students can use in a wide variety of experiments. The new competition 'Astro Pi Coding Challenges', launched this month, presents a specific problem to students and asks them to solve it with code. This approach differs from the 2015 competition, where students were given an open-ended brief to come up with their own ideas for experiments. This time, Tim has a particular task in mind for them, with two challenges on offer, both of which are music-based."