Chapter 5: Telescopes When you think of astronomy you think of telescope, right? So it is fitting to discuss how astronomers use telescopes to gain information. - ppt download
Top 5 First Discoveries In Astronomy (Along the History) | CosmosUp
Buying Your First Telescope? What You Need to Know | Space
History of the telescope - Wikipedia
The First Telescopes (Cosmology: Tools)
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
History Of the Telescope - Who Invented the Telescope? | IE
How to Choose Your First Telescope - Sky & Telescope - Sky & Telescope
My First Telescope | Science Museum Shop
The World's First Space Telescope - Scientific American Blog Network
The First Telescope - Lenses and Cylinders, Galileo Galilei Looks to the Heavens
Very Early Telescope by Voigtländer & Sohn, before 1852 - May 30, 2015 | Auction Team Breker in Germany