Who Was Galileo Galilei?
Galileo Galilei (1564-1642), the great Italian scientist and mathematician, was the first astronomer to use a telescope, the discoverer of t
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Astronomer
Why Do We Call Galileo by His First Name Only?
The surname Galilei derives from the given name of an ancestor, Galileo Bonaiuti, a physician, university teacher and politician who lived i
Who Was the Last Man to Discover a Planet?
Clyde Tombaugh, a young American research student, made the last discovery of a planet while working in 1930 at the Lowell Observatory, Ariz