What is that big, glowing object in the afternoon sky, providing life on Earth with the light and warmth it needs? It's the sun! With the help of vibrant images and factual, elementary-level STEM text, this nonfiction astronomy title for children examines the history of our solar system's largest star, its composition, formation, and location. A space science feature spotlights the research capabilities of the Parker Solar Probe. Captions, on-page definitions, additional resources, and an index support readers in grade 2 and up.