After building his first telescopes, Galileo demonstrated the new instrument ... That discovery helped support a heliocentric model of the solar system — a belief so radical at the time that ...

His observations of the night sky in the early 1600s confirmed a new model of ... the solar system, Galileo was working on practical problems. And his early goals for the telescope weren't so ...

Galileo’s telescope anchors the exhibit “Galileo ... Shipwrights employed the device when testing hull designs in scale model. And it even found use on the battlefield, where soldiers could ...

When Italian astronomer Galileo Galilei heard rumors of the first practical telescope at the beginning of the 17th century, he was quick to craft his own version and turn it toward the heavens.

Forbes contributors publish independent expert analyses and insights. I cover the history of science and exploration. On this night in 1609, astronomer Galileo Galilei trained his telescope on the ...