In March of 1899, William Pickering discovered Phoebe, a moon of Saturn, on photographic plates taken on Aug. 16, 1898, by DeLisle Stewart. It was the first moon to be discovered photographically, ...

King Alfonso X "the Wise" (b. 1221) was a noted scholar who pioneered the translation of Arabic and Andalusian astronomical works into vernacular Castilian. His multicultural court was active in ...

The earliest cosmological ideas -- The early Greek philosophers -- The Pythagorean school -- Plato -- The homocentric spheres of Eudoxus -- Aristotle -- Herakleides and Aristarchus -- The theory of ...

pt. I. Ancient astronomy, from its origins to the end of the Middle Ages. The origins of astronomy -- Primitive astronomy in China, Chaldea and Egypt -- The cosmology of primitive peoples -- The ...