A look at Galileo Galilei's most notable innovations, discoveries and observations in the field of astronomy, physics and other disciplines on the noted Italian physicist, mathematician, engineer, ...

Few figures shine as brightly as Galileo Galilei, an Italian philosopher whose contributions to astronomy revolutionized the understanding of the stars. "Galileo Galilei (1564–1642) has always played ...

Galileo knew he had discovered a new planet in 1613, 234 years before its official discovery date, according to a new theory by a University of Melbourne physicist. Professor David Jamieson, Head of ...

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 ...

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 ...

A manuscript attributed to Galileo Galilei found to be a forgery in August has led to the discovery that a different, controversial book was authored by the celebrated Italian astronomer. When you ...

The story of Galileo, his discoveries, and his struggle with the Catholic Church.

It began the way many discoveries do — a tickling of curiosity in the back of someone’s mind. That someone was astronomer and communicator Carl Sagan. The thing doing the tickling was the trajectory ...