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 ...

On this date, Jan. 7, 1610, astronomer Galileo Galilei, with a homemade telescope, noticed three points of light near Jupiter. Initially believing they were distant stars, Galileo’s repeated ...

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 ...