PBS
Pbs Learning Media: Galileo's Telescope
The invention of the telescope helped change our understanding of the universe. This video segment adapted from NOVA looks at Galileo's contribution to this technology. [1:49]
Science4Fun
Science4 Fun: Telescope
Illustrated discussion of the invention of the telescope with details on Galileo's telescope, the reflecting telescope, and the space telescope.
Curated OER
Astro Lab: Refracting Telescopes
Get the facts and historical background information on refracting telescopes, an important astronomical tool. This page has great accompanying photographs, as well as diagrams.