An overview with photographs of many lesser known telescopes typical of their time.

Official page with articles, including the Baloney Detection Kit. Includes sale of books and videos.

Library, archives, outreach programs.

Includes detailed biography, online links, outlines of some of his works, quotes, and reading list.

Announcements of discussions (in Oakland, California), open to the public, on various astronomy history topics, and an archive of past discussions

An investigation of the science and history which bear on the mysterious star said to have accompanied the advent of Christ.