Stones of Wonder – A survey of the megaliths and ancient sites of Scotland, with their astronomical orientations.

Skyscript: The Life and Work of Galileo Galilei – A detailed account of Galileo’s life and work, and his importance to the history.

Sundial, Calendar and Khmer Temples – Experimental astronomy applied on research of solar orientation of the temples in southeast Asia.

Heavenly Mathematics: Cultural Astronomy – An interdisciplinary course on cultural astronomy.

NASA History Division – The NASA History Program was first established in 1959, and has continued to document and preserve the agency’s remarkable history.

History of Astronomy – Offers a history of the field and science. Features links to related sites, awards and contact details.

The Bruce Medalists – Brief biographies and photos of prize-winning astronomers of the 19th and 20th centuries.

History of SETI – An overview of the history of the search for extraterrestrial intelligence using radio frequencies. Includes photos.