Instruments of revolution can appear deceivingly simple. With a bit of wood, copper wire and paper, Galileo fashioned a telescope that opened the skies for discovery. The telescope had a magnifying ...

Source: NOVA: "Galileo's Battle for the Heavens" This resource was adapted from NOVA: "Galileo's Battle for the Heavens." As early as the 1300s, eyeglasses made from convex, or outward-curving, lenses ...

Despite the summer heat, the Senate of Venice assembled on this day in 1609 to view a remarkable scientific instrument. It was built by the well-known astronomer and philosopher from Pisa, Galileo ...

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 ...

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 ...

Galileo's observations of the night sky in the early 1600s confirmed a new model of the universe, in which the Earth orbited the sun—and not the other way around, as his contemporaries believed. But ...