Describes the objects that reside in the Milky Way galaxy, including stars, nebulas, clusters, and black holes, and explains what astronomers have discovered about other galaxies.

The Milky Way -- Billions of stars -- Different types of stars -- The sun -- Nebulas -- Clusters -- Black holes -- Galactic neighbors -- When galaxies collide -- Hands on: swirling galaxies -- Words to know -- Read more -- Useful addresses -- Internet sites.