Questions about the universe are as popular as they are daunting to answer. Let this book help satiate young readers curiosity about outer space and the universe by answering this important question. Each page is written with accessible, age-appropriate language and paired with visual aids, including tons of photography from NASA. Fact boxes with "Out of this World!" tidbits add interest throughout the work, while graphic organizers enhance engagement and comprehension. This book will be right at home in any library or classroom.