Our galaxy contains about 200 billion stars. Astronomers believed that some of these stars must have solar systems with planets. They went looking – and found

From black holes to dark matter, galaxies to supernovas, nothing could be more fascinating than outer space, especially to young readers. Every day, scientists

The past few years have seen an incredible explosion in our knowledge of the universe. Since its 2009 launch, the Kepler satellite has discovered more than two

Discover a universe of fun and amazing facts about space! Take an exciting, fact-filled journey that goes where all great space books for kids should--to our so

Table of contents