Imagine you're working on a spaceship and need to see a 3D display of our Solar System. Press the right keys, and a fab holographic display appears! This puzzle shows just that, and includes essential information about the distance between each planet. Beside each image is a sign giving the AU (astronomical unit) measurement. Used by astronauts, one AU is equal to around 93 million miles. This imaginative and unusual design would make a great gift or pastime for budding astronauts and anyone with an interest in space. It will start some interesting conversations and be a thought-provoking activity to share with parents, grandparents, siblings and friends.