As we approach summer in NZ, the Sun gets higher in the sky and increasingly warms the Earth and the air around us. In the early 1600s Galileo Galilei explained that the Earth goes around the Sun, but there's no reason why we can't discuss the apparent movement of the Sun across the sky, as you see it from a frame of reference fixed to the Earth. Let's do that, and investigate the different ways that the Sun drives our seasons.