Introduction
You are ready to lift off on a rocket trip around the universe. Your job is to learn about the Universe (galaxies and planets). Which are the best known galaxies in the universe? How many planets are there? Which is the largest planet? Which is the smallest planet? Do you think that there is a new planet besides Earth where you can live? Could our class write about this topic? Do you think it is possible to create a Universe or solar System in class? This is your mission!