CK-12 Foundation
Ck 12: Earth Science: Life Cycles of Stars
[Free Registration/Login may be required to access all resource tools.] Examines the formation of a star and the main sequence of the star's life cycle.
BBC
Bbc: Gcse Bitesize: The Life Cycle of a Star
This lesson focuses on the formation and life cycle of stars. Stars form when enough dust and gas clump together because of gravitational forces. Nuclear reactions release energy to keep the star hot. Some stars grow larger over time....
Space Telescope Science Institute
Hubble Site: A Decade of Discovery
Take a look back at a decade of discovery concerning the Hubble from the HubbleSite. Site contains links to a portfolio of pictures, a quicktime video as well as the vault of discovery.