It’s time for some facts! Every star in the night sky could be bigger and brighter than the sun. Did you know that if you put all the planets together and multiply by 500, they would fit in the sun? Stars make a sound. It sounds like a jingle bell. When a star dies it becomes a white dwarf or if the star is big, it becomes a black hole. The sun is a main sequence star. A group of stars is called a galaxy.