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 ...

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 ...

Galileo Galilei is recognized as one of the most important scientists in history. He perfected the first telescopes and his ...

"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 ...

On July 30, 1610, the famous astronomer Galileo Galilei became the first to observe rings around the planet Saturn. Shortly after the telescope was invented in 1608, Galileo peered out into the solar ...