Understanding the universe and space in all its complexity has consumed the passions of many people over the millennia. With an interest in bringing material from the world of scientific cosmology to the web-browsing...

Authored by Nick Strobel, these web pages give a brief history of the imporatant figures associated with shaping Astronomical thought into what it is today. It covers the work and discoveries of the ancient Greeks,...

This web page, created by David P. Stern, describes observations that show the earth is a sphere and the history of these observations. The round shape of the Earth may be inferred from the existence of a horizon at sea....