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Four Hundred Years Ago, Galileo's Telescope Changed The World
15 Fascinating Facts About Galileo | Mental Floss
Galileo Galilei: Biography, Inventions & Other Facts | Space
Galileo astronomy and house arrest:
On this day in history, Jan. 7, 1610, Galileo discovers the moons of Jupiter | Fox News
Why Galileo Galilei Was Sentenced To Life In Prison