CU Professor Steven Brown travels the world to study the amazing, invisible, ethereal stuff that blankets our amazing planet and makes life on Earth possible. Have you wondered...Why is the Sky Blue!? Why are sunrises orange? What is air made of exactly? Did you know the Earth wears sunglasses!? And what's the story about the greenhouse gases that are slowly but steadily warming the Earth? Professor Brown’s show brings air down to Earth in a show geared for a young K-12 audience eager to learn about the science of our atmosphere.