Projecting the image of the Sun through a refracting telescope in order to study sunspots, illustration from 'Rosa Ursina' by Christoph Scheiner, published in 1630 (engraving) by Italian School, (17th century)
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 Invention of Telescope: Beginning of a New Era in Space Research
A look at the starry heavens – Sights and insights through the telescope | Die Welt der Habsburger
2009 is the International Year of Astronomy
We will laugh at the extraordinary stupidity: Galileo to Kepler – Science Backyard
The Scheiner helioscope (see Rosa Ursina 1630) follows a principle... | Download Scientific Diagram
Galileo's “Starry Messenger” and Kepler's “Dioptrice” Two of the Most Important Books in Early Observational Astronomy - jamesgray2
Galileo - Scientific Revolution, Sunspots, Moon's Surface, and Moons of Jupiter | Britannica
Portrait of Galileo Galilei
Galileo's Lessons for Living and Working through a Plague - Scientific American
What did the Astronomer Galileo Galilei discover? - Interesting Facts
Galileo Telescope errors in the optics and why there is high honesty in scientific work
4,001 Galileo Photos and Premium High Res Pictures - Getty Images
Galileo Galilei: Early Life, Discoveries, and Theories - Malevus
READ: Galileo Galilei (article) | Khan Academy
Galileo affair - Wikipedia
Galileo - Scientific Revolution, Sunspots, Moon's Surface, and Moons of Jupiter | Britannica
Galileo | Before Newton
Vision quest: Curator catalogs the world's oldest telescopes
1,310 Galileo Galilei Photos and Premium High Res Pictures - Getty Images
History of the telescope - Wikipedia
