The activities in this book explain elementary concepts in the study of the solar system, including orbits, the sun, the moon and moon phases, planets, seasons,

The material in this book deals with basic concepts from the modern study of planetary and astronomical sciences. Objects in our solar system and in outer space

The activities in this book reinforce basic concepts in the study of the universe, including the planets, stars, comets, astronomers and their tools, and space

Explores the world beyond the solar system and examines stars, galaxies, and the universe itself.

Are we alone in the universe? How did life arise on our planet? How do we search for life beyond Earth? These profound questions excite and intrigue broad cross