This book is a tribute to our place in space, the Sun, the atmosphere, and the Earth. It has information, activities, pages to breathe in deep with, and pages to have fun with. On some pages, we answer questions that science has already found answers for (What is the wind? How big is the sun?); in others, we tell stories involving bees, trees, or flying seeds; in others, still, we talk about people, of course. The sun enters through our window, and the air enters our lungs. The hats that fly away with the wind. The people that are the sunshine of our lives. Are you coming? The sun is waiting for us; let’s go. We really could use some fresh air in collaboration with Sonia Antón (astrophysicist), Ricardo Trigo (meteorologist), Ricardo Tomé, and Fernando Catarino (biologist).