Our Universe is so large that we cannot even imagine its actual size. Surely in telescopes of different powers, we observe only a separate part of it, but what else is hidden from our eyes. However, what we manage to consider can be studied for many generations. The game memorize the planets offers you, based on pictures with images of different planets and nebulae, to train your visual memory. Open and find identical pairs of celestial bodies shown in the pictures. Try not to make mistakes, incorrect moves are counted too.