Star Formation

This is an interstellar cloud, as it begins to collapse the formation of a star begins

This is called cloud fragmentation, and it is the next step in the formation of a star. The gravity is increasing in the middle pulling the rest together. 

This is a protostar that made it through the first steps of formation. 

This is a formed star that has finally formed and begun fusion. At this point, it is essentially starting to die.