Galaxies are huge islands of stars separated by even larger volumes of empty space in the universe. We live in one of these galaxies, the Milky Way, and all individual stars we can see in the night sky are part of our own galaxy. This pages links to a collection of images of other galaxies. They typically contain hundreds of billions of stars surrounding a massive central black hole, and may be many millions of light years away. Galaxy types include elliptical, spiral, barred spiral and irregular. More details about the different galaxy types are included on the individual image pages.