The Proceedings of a conference on "Science and Stonehenge" held in 1996 at the Royal Society, London, have been published as Barry Cunliffe and Colin Renfrew, eds., "Science and Stonehenge," published for the British Academy by Oxford University Press, ISBN 0-19-726174-4.
A tour of megalithic sites in Western Europe, and links to other archaeoastronomy sites.
Prof. Anthony Aveni of Colgate University, an expert on archaeoastronomy, discusses Stonehenge, Mayan astronomy, medicine wheels, and a variety of other topics in "Stairways to the Stars: Skywatching in Three Great Ancient Cultures" (Wiley & Sons, 1997). On Stonehenge, he concludes (p. 91): "Over the past few decades, reflection, coupled with remeasurement and analysis of Megalithic sites by interdisciplinary teams of researchers, seems to have toned down the presumed scientific motivations of our archaic ancestors. The compromise Stonehenge model the new millennium seems to desire leaves room for a fusion of scientific ideology with religious worship and social concerns. Postmodern Stonehenge recognizes the diversity of the interrelated components that make up civilized culture."
Galileo, Florence Museum of the History of Science
Galileo, Internet Encyclopedia of Philosophy entry
Galileo, from the Astronomical Observatory of Padua