On January 7, 1610, the Italian astronomer Galileo discovered three of Jupiter's moons: Callisto, Europa and Io. When he ...

Scientist celebrated today for changing our view of the universe. Aug. 25, 2009 — -- Who invented the telescope? Not Galileo. Who first pointed it at the heavens? Again, it wasn't Galileo. So ...

On Jan. 7, 1610, Galileo Galilei turned his self-built telescope, which he had recently made improvements to, towards Jupiter ...

Galileo Galilei's 1610 telescopic observations of Saturn initially revealed features interpreted as two appended moons or lobes. Subsequent observations in 1612 showed the disappearance of these ...

Hans Lippershey's ingenious spyglass -- Galileo's new window on the heavens -- Johannes Kepler, the nearsighted wizard -- Isaac Newton's reflecting telescope -- William Herschel's giant reflectors -- ...

Galileo Galilei is recognized as one of the most important scientists in history. He perfected the first telescopes and his discoveries revolutionized our understanding of the universe. However, he ...

Proceedings of the American Philosophical Society is a quarterly journal that includes papers read at the American Philosophical Society’s biannual meetings, independent essays by outside scholars, ...