Hamin and Yeol have come a long way in space. They explored Mars using a spaceship. They have also saved some photos to participate in the Solar System Planetary Photo Contest. As it turned out, the children who brought the best photos, would be rewarded with the stars of the expedition team. Then, will they be able to win the photo contest? The Smart Science series is a storybook with interesting science content that can be accessed via smartphones. Children will get new experiences in learning science through stories, experimental videos, animations, and fun apps.