PHILADELPHIA -- Though it looks like a cardboard tube that got left out in the rain, it's a priceless instrument whose owner changed the world. The mottled brown cylinder on display at The Franklin ...

The telescope began as a relatively simple device, born out of optical experimentation. It combined a series of lenses and mirrors to collect and magnify light, allowing the user to see far away ...

Tired of ads? Subscribers enjoy a distraction-free reading experience. Click here to subscribe today or Login. ‘Galileo, the Medici and the Age of Astronomy’ opens Saturday in Philadelphia. Shown is ...

Even in the league of genius polymaths, Italian astronomer Galileo Galilei enjoys legendary status. He was the first to systematically study space with a telescope and his inventions include the ...

"Lecture delivered to the Rochester N.Y. section of the American Optical Society, Nov. 2nd 1965, and to the joint sections of the Delaware Section of the Optical Society of America and the Rittenhouse ...

Add Yahoo as a preferred source to see more of our stories on Google. On July 30, 1610, the famous astronomer Galileo Galilei became the first to observe rings around the planet Saturn. Shortly after ...

Italian mathematician Galileo Galilei was born in Feb. 15, 1564, in Pisa. Often summarized as the father of modern science, certainly a polymath and a brilliant thinker who operated on a high ...

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 ...

Four hundred years ago this month, Galileo Galilei turned a telescope skyward. What he saw -- stars around Jupiter -- would revolutionize astronomy. The stars, which after further examination he ...