The oldest exact astronomic constant? The ratio of earth rotations to lunar orbits in Aryabhata's AD 498 writing.

Excerpts and commentary with reproductions of some of Elihu Vedder's illustrations.

Features history of discoveries and references.

Historical and modern Japanese astronomy, and its place in Japanese culture

From the Uppsala University Newsletter for History of Science.

Part of the history of astronomy covering the discoveries of the size and nature of the universe.

Discusses the development of reflective telescopes during the 1700's. Covers the different types of mirrors and lens that were used during these times. Includes some key contributors to the improvement of the telescope during this period.

A rare celestial atlas discovered in the library of the Manchester Astronomical Society.

A substantial look at the subject, and a review of N. M. Swerdlow's book.

Workshops at Notre Dame, papers presented, abstracts, group pictures of attendees.

Radio astronomy and the search for extraterrestrial intelligence.

A timeline of the search for extraterrestrial intelligence, from Morrison and Coconni to SETI@home.

World history of astronomy and timekeeping with updates, and origins, based on original sources and places where possible.

Robert Woodrow Wilson Nobel Lecture.

Images from the history of astronomy, old telescopes, pictures of astronomers, observatories.