Sources
I.  Sources of Information
Ferguson, Kitty.  Prisons of Light: Black Holes. Cambridge, UK: Cambridge University Press, 1996.
Hawking, Stephen W. A Brief History of Time From the Big Bang to Black Holes. New York:            Bantam Books, 1988.
National Aeronautics and Space Administration (NASA).  <http://www.nasa.gov>
Spacelink (by NASA).  <
http://spacelink.nasa.gov>
"Subrahmanyan Chandrasekhar."  Cambridge, MA:  Harvard-Smithsonian Center for Astrophysics,        2002.  <http://xrtpub.harvard.edu/about/chandra.html>
II.  Search Engines
Google.  <http://www.google.com>
Montgomery County Public Libraries.  <http://www.mont.lib.md.us>
III.  Other Related Sources
"A Beginners Guide to HTML."  NCSA.                                                                <http://archive.ncsa.uiuc.edu/General/Internet/WWW/HTMLPrimerPrintable.html>
Discovery.com <http://school.discovery.com>
Yahoo!  <http://www.yahoo.com>
Yahoo! Geocities.  <http://geocities.yahoo.com>
Hosted by www.Geocities.ws

1