Works Cited

Image 1:

            http://images.google.com/imgres?imgurl=http://www.astaria.jp/m/stars/m3_320.jpg&imgrefurl=http://www.astaria.jp/m/stars.htm

Image 2:

http://www.astr.ua.edu/gifimages/m16r.html

Image 3:

http://hubblesite.org/newscenter/newsdesk/archive/releases/2004/11/

Image 4:

http://umpontoazul.blogs.sapo.pt/arquivo/2004_03.html

Image 5:

http://hubblesite.org/newscenter/newsdesk/archive/releases/2004/07/

Image 6:

http://hubblesite.org/newscenter/newsdesk/archive/releases/2004/07/image/d

Image 7:

http://hubblesite.org/newscenter/newsdesk/archive/releases/2004/07/image/f

Image 8:

http://antwrp.gsfc.nasa.gov/apod/image/0503/foxfur_croman_big.jpg

Image 9:

http://antwrp.gsfc.nasa.gov/apod/ap050214.html

Image 10:

http://antwrp.gsfc.nasa.gov/apod/ap050116.html

Image 11:

http://antwrp.gsfc.nasa.gov/apod/ap041128.html

Image 12:

http://antwrp.gsfc.nasa.gov/apod/image/0501/m45_russell_big.jpg

Image 13:

http://antwrp.gsfc.nasa.gov/apod/ap041121.html

Image 14:

http://imagine.gsfc.nasa.gov/docs/science/know_l2/sun_parts.html

http://fixedreference.org/en/20040424/wikipedia/Stellar_evolution

Grolier. Encyclopedia of Knowledge. Vol. 17. Grolier Inc,

 Danbury, Connecticut. 1996. 335-338.