Galileo’s telescope anchors the exhibit “Galileo, the Medici and the Age of Astronomy,” which is at the Franklin Institute in Philadelphia until September 7, 2009. Though Galileo didn’t invent the ...

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 ...

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 ...