Life Cycle of a Star

This video summarizes the stages in the life cycle of a star. Not every star goes through every stage you've learned about. The exact stages in a star's life cycle are determined by the star's mass. For example, only massive stars will undergo a supernova, and only the most massive of stars will end their lives as a black hole.


Source
http://www.youtube.com/watch?v=H8Jz6FU5D1A