Galileo and the Telescope | Modeling the Cosmos | Articles and Essays | Finding Our Place in the Cosmos: From Galileo to Sagan and Beyond | Digital Collections | Library of Congress
The Worlds Biggest Telescopes Through History - From Galileo to Gran Telescopio Canarias - YouTube
Galileo's telescopes: Facing the facts | History Today
The History of the Telescope (Dover Books on Astronomy): King, Henry C.: 9780486432656: Amazon.com: Books