A picture of a black hole is taken by Joe Bergeron.
The nebula picture is taken by Ronald Royer.
"Protostars" Jeff Hester and Paul Scowen/AZ State Univ./NASA/
Space Images.
The picture of the sun is taken by Science Source/Photo Reasearchers, Inc.
"White Dwarf" Space Telescope Science Institution/Corbis
"Supernova" Hale Observatories/Science Source/Photo Researchers, Inc
The picture of the spectrum graph is copyrighted by Microsoft Corporation
The Milky Way Galaxy was taken by Morton-Milon/Science Sorce photo/Photo Researchers,
Inc
The idea for the lifecycle picture is copyrighted by Microsoft Corporation
Idea for the "Temperature of Stars" Science Probe 7,
Scarborough, Ontario. Copyright 1997, International Thomsom Publishing
Research done in Microsoft, Encarta, Encycloperdia 2001.Copyright 1993-2000 Microsoft
Corporation