Stellar Evolution

Image 1	http://msnbcmedia.msn.com/j/msnbc/Components/Interactives/News /International/Iraq/040705_whitedwarf_hlg_1p.h2.jpg
Image 2	Betelgeuse http://www.nmm.ac.uk/upload/img/2_20020624101618.jpg
Image 3	http://nssdc.gsfc.nasa.gov/image/astro/hst_stingray_nebula.jpg
Image 4