Ben loves jelly beans, and every week he goes to Jo-Jo's Jelly Bean Shop hoping to guess the riddle that will win him a whole jar full of them. He always knows the answer to the riddle, but he has never won the prize. It's hard to speak out loud in front of so many people, but with a little help from his sister, Ben finally learns to say what he's thinking.

What is the sun made of? What causes night and day? Why does the moon change shape? Colorful collage illustrations and an easy-to-understand text bring planets, stars, comets, and the wondrous things out there in space right down to earth in a simple introduction to the solar system for young armchair astronauts.