Includes bibliographical references and index.

"The night sky is a place of wonder for all young readers. Stars are of particular fascination, especially once they learn that the sun is a star! In this book, learners explore the gases and life cycle of a star. Incredible, colorful photographs straight from NASA's telescopes and probes bring each spread to life. Thought-provoking text answers the title's question with easy, accessible language while still igniting interest. This book is right at home in any collection!"--,Provided by publisher.