Galileo: Letter to the Grand Duchess Christina - Galileo's great defense of the independence of science from religious authority.

Galileo and Einstein - A lecture course by Michael Fowler of the University of Virginia: History of Astronomy from ancient Greece to Relativity.

Top-Biography.com: Galileo Galilei - Traces his life from childhood through the final years. Includes an overview of his achievements. Also provides a timeline and a collection of quotations.

Galileo: The Creation of a Heretic - Background to the trial and condemnation.

Galileo Galilei Quizzes - Test your knowledge of Galileo's life and work.

Galileo Galilei - Biography, with links to related internet sites.

Galileo and Einstein - A resource for a University of Virginia physics course, with lecture notes.

BBC Online: Galileo - In-depth look at Galileo's life and his significance.

Multimedia Catalogue - Room IV Galileo Galilei - Virtual tour and descriptions of Galilean artifacts on display at the History of Science Museum, Florence, Italy. Includes biographical links and notes.