Elara remembered the warm nights and the fireflies. “That’s why the sun feels so strong then,” she whispered.
He continued the journey. Now the top of Earth leaned away from the torch’s light. seasons in northern hemisphere
Elara thought of the crisp air and apples in baskets. Elara remembered the warm nights and the fireflies
He drew a circle in the dirt. “Imagine Earth is a spinning top. But unlike a straight top, our Earth is leaning—tilted 23.5 degrees. And as we race around the Sun each year, that lean points us in different directions.” Now the top of Earth leaned away from the torch’s light
“Elara,” he said, “the secret isn’t how close we are to the Sun. The secret is our tilt .”
Finally, he moved the model again. Once more, the top leaned sideways, neither toward nor away from the torch.
He picked up a torch to represent the Sun. “Watch closely.”
