Credits and Sources
Internet Sources
The Most Famous Astronomers of All Time
Mac Tutor History of Mathematics Archive
List of Astronomers - Wikipedia
Nicolaus Copernicus - Wikipedia
Nicolaus Copernicus - Space.com
Tycho Brahe - The Galileo Project
Galileo Galilei - Stanford Encyclopedia of Philosophy
Johannes Kepler - Stanford Encyclopedia of Philosophy
Isaac Newton - Institute for Mathematical Sciences (No Longer Active)
Charles Messier - The Famous People
William Herschel - Encyclopedia Britannica
Maria Mitchell - Maria Mitchell Association
Maria Mitchell - Biography.com
Percival Lowell - American National Biography Online
Albert Einstein - The Official Site (No Longer Active)
Albert Einstein - Nobelprize.org
Carl Sagan - The Planetary Society
Stephen Hawking - The Official Website
Neil deGrasse Tyson - Wikipedia
Neil deGrasse Tyson - Biography.com
Neil deGrasse Tyson - About.com Space & Astronomy (No Longer Active)
Neil deGrasse Tyson - The Planetary Society
Michio Kaku - Fanpop (No Longer Active)
Michio Kaku - About.com Physics (No Longer Active)