Lead: Few early scientists contributed as much to the understanding of the way the universe works as Galileo but in his lifetime he was not popular.

Intro.: "A Moment in Time" with Dan Roberts.

Content: Galileo Galilei was the son of a poor nobleman and destined for a medical career. Yet, while at the University of Pisa in northern Italy, he became fascinated with mathematics and by 1589 was teaching at the University level. Fairly early in his career, he came to believe the theory taught by the Polish mathematician Copernicus that the planets revolve around the sun, but was hesitant to teach this openly because of the almost universal acceptance of the older theory which placed the earth of the center of the universe.