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 ...

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 ...

"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 ...

Four hundred years after Galileo Galilei first demonstrated his telescope to scholars on a Roman hilltop, the astronomer condemned by the Catholic Church was celebrated on the same spot with a ...

PHILADELPHIA (Reuters Life!) - A three-foot telescope used by the Italian astronomer Galileo, whose discoveries revolutionized astronomy, is the main attraction at an exhibition at the Franklin ...