Galileo Galilei

American  

noun

1. Italian physicist and astronomer, 1564–1642.

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Galileo Galilei Scientific  

/ găl′ə-lā′ōgăl′ə-lā′ /

1. Italian astronomer, mathematician, and physicist. He was the first to use a telescope to study the stars and planets, and he discovered various astronomical phenomena and physical principles.

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Example Sentences

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Galileo Galilei

Galileo Galilei and Isaac Newton recognized this universality of free fall centuries ago.

From Science Daily ● Sep. 18, 2026

It took the Vatican until 1992 to admit that astronomer Galileo Galilei was right almost four centuries earlier about the Sun being the center of our solar system.

From Salon ● Jan. 25, 2025

Mr. Musk is not named in the 96-page brief filed Monday, but Hunter Biden and Galileo Galilei do make appearances.

From Washington Times ● Nov. 14, 2022

Galileo Galilei was peering through a new telescope in 1610 when he noticed something strange: several bright objects flickering around the planet Jupiter that seemed to change positions nightly.

From New York Times ● Aug. 17, 2022

Galileo Galilei was born in Pisa on 15 February 1564—the same year that William Shakespeare was born and in the same month that Michelangelo died.

From "The Scientists" by John Gribbin

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