Galaxy

Galaxys aren't just made of stars they are also made of chemical clouds and a black hole in the middle. There are known to be about 170 billion galaxys in the universe. There are lots of types of galaxys like spiral galaxys, barred spiral galaxys, eliptical galaxys and peculiar galaxys. Spiral galaxys are like a spiral. Barred spiral galaxys are spiral galaxys with arms coming of them. Eliptical galaxys are galaxys like a straight line and peculiar galaxys are funny shapes.