"Our solar system is just one small part of our galaxy--and there are thousands of galaxies besides our own. In this accessible and straightforward text, readers are introduced to the marvels of galaxies. Formation, sizes, and shapes of galaxies are discussed, including the Milky Way. Galactic movement and how scientists study galaxies are also revealed."-- Provided by publisher.

What is a galaxy? -- Big and small -- The Milky Way -- Travel group -- Seeing the Milky Way -- Spiral shape -- Elliptical shape -- No shape -- Studying galaxies -- Activity: create a galaxy!.