Includes index and bibliographical references and index.

Prologue -- The greatest story ever told -- How to communicate with aliens -- Let there be light -- Between the galaxies -- Dark matter -- Dark energy -- My favorite elements -- Why the world is round -- The invisible universe -- Around our solar neighborhood -- What Earth would look like to an alien -- Looking up, thinking big -- Glossary.

America's most celebrated astrophysicist invites young readers to explore the mysteries of the universe.

Age 8-12.