Doodad

After the formation of stars takes place in a nebula, many of them form groups from the same Nebula, forming a Star Cluster. Star clusters can contain as few as ten stars or as many as millions of stars. One type of star cluster is the globular star cluster. Globular clusters are stable, tightly bound groups of tens of thousands to millions of stars that are associated with all types of galaxies, according to NASA. Their dense populations of stars and mutual gravitational attraction give these clusters a roughly…