Learn how the universe works, how life began, and what it takes to travel through space. Complete all three units to earn your Mission to Mars credential.

Your mission: Design a base that can support human life on Mars for one year. Submit your project for a chance to become a Villars Fellow and win a trip to Switzerland in 2026. Deadline: 20 December

What does it take to be an astronaut? What's inside a black hole? Who were the unsung women of America's space programme? Find the answers - and much more - in our series of bite-sized space adventures.