Still, even Galileo recognized the ground-based uses of telescopes. After building his first telescopes, Galileo demonstrated the new instrument to the Venetian Senate, including military leaders.

Well, any of us who has ever looked through a telescope ... expression upon first realizing this!) Place those lenses in a tube and voilà, you have a spyglass. Within months, Galileo had not ...

Galileo Galilei was the founder of modern physics ... His many discoveries include the law of inertia later used by Isaac Newton as the first law of motion, the parabola as the path of a ...

Galileo Galilei was born on February 15 ... Galileo soon developed the strongest telescope the world had ever seen, and would prove the Church wrong. Though he had many breakthroughs in physics ...

"Philosophy is written in this grand book the universe," Galileo said. "But the book cannot be understood unless one first learns to comprehend the language and to read the alphabet in which it is ...

The four biggest moons of Jupiter aren't just blurry smudges in Galileo's telescope anymore. The Italian astronomer Galileo Galilei discovered Ganymede, Callisto, Europa and Io back in 1610, which ...