A Classification of the Spectra of the Stars (1925) by Annie Jump Cannon
	A Revision of Leander McCormick Observatory Catalogue of Proper Motions (1915) by Annie Jump Cannon
	An Account of the Discovery of a Comet (1847) by Maria Mitchell
	Celestial Mechanics (1799) by Pierre Laplace
	Commentariolus (1514) by Nicolaus Copernicus
	Cosmic Connection: An Extraterrestrial Perspective (1973) by Carl Sagan
	Cosmos (1980) by Carl Sagan
	De revolutionibus orbium coelestium (1543) by Nicolaus Copernicus
	Draper Catalogue of Stellar Spectra (1924) by Annie Jump Cannon
	Exposition of the System of the World (1796) by Pierre Laplace
	History and Demonstration Concerning Sunspots (1613) by Galileo Galilei
	Measuring the Universe: And the Quest for Dark Energy (2011) by Saul Perlmutter
	Pale Blue Dot: A Vision of the Human Future in Space (1994) by Carl Sagan
	Popular Astronomy (1878) by Simon Newcomb
	Research on the Secular Inequalities of Jupiter and Saturn (1785) by Pierre Laplace
	Sidereus Nuncius (The Starry Messenger) (1610) by Galileo Galilei
	Spectral Miscellanea (1927) by Annie Jump Cannon
	Theoria motus corporum coelestium in sectionibus conicis solem ambientium (1809) by Carl Friedrich Gauss
	Theoria motuum planetarum et cometarum (1744) by Leonhard Euler
	What Social Classes Owe to Each Other (1883) by William Graham Sumner