What is the Milky Way galaxy?
The Milky Way is our home galaxy. It contains the sun and billions of other stars. In addition to over one hundred billion stars and possible black holes, the Milky Way is comprised of star clusters, planets, glowing nebulae (gas clouds), dust, and empty space. Older stars and denser clusters lie near the center of the galaxy while younger stars and open clusters reside in the plane of the disk.