Ever wonder if humans are alone in the Universe? We can estimate how many intelligent civilizations exist in the Universe by approximating different variables! This app estimates the number of intelligent civilizations based on the guesses you give it. Counts toward Space Cadet badge.
How well do you know the planets of the Solar System? Answer these 5 questions to show you know your stuff! Counts toward Space Cadet badge.
Want to know what it takes to make a planet habitable? Counts toward Space Cadet badge.
Let your creativity shine through with our coloring page of the planets of the solar system!
Make your own beautiful, full-color images of space! Counts toward Space Cadet badge.