By: HISTORY.com Editors

1642

Astronomer Galileo dies in Italy

Published: February 09, 2010

Last Updated: February 18, 2025

Italian astronomer Galileo Galilei dies in Italy at age 77. Born February 15, 1564, Galileo has been referred to as the “father of modern astronomy,” the “father of modern physics” and the “father of science” due to his revolutionary discoveries. The first person to use a telescope to observe the skies, Galileo discovered the moons of Jupiter, the rings of Saturn, sunspots and the solar rotation.

After Galileo published his confirmation that the Earth orbits the Sun, in favor of the Copernican system, he was charged with heresies (ideas that ran counter to teaching of the church) by the Inquisition—the legal body of the Catholic church. He was found guilty in 1633 and sentenced to life imprisonment but due to his age and poor health he was allowed to serve out his sentence under house arrest.

Galileo Galilei

Find out why Galileo's beliefs in a heliocentric solar system threatened the Catholic Church and caused him to stand trial for heresy.

Timeline

Also on This Day in History

Discover more of the major events, famous births, notable deaths and everything else history-making that happened on January 8th

Related Articles

8 Inventions from the Second Industrial Revolution That Transformed Life

The period between the late 1800s and the early 1900s saw a boom in innovations that would take the world by storm.

The Current Wars: Edison, Tesla, Westinghouse

The epic race to standardize the electrical system—later known as the War of the Currents—lit up 19th-Century America.

On the 200th anniversary of Samuel Colt’s birth, learn 10 surprising facts about the gun manufacturer and industrialist.

The First Transatlantic Telegraph Cable Was a Bold, Short-Lived Success

After much ado, the US and Britain laid the first successful cable under the ocean in August 1858. It stopped working weeks later.

About the author

HISTORY.com Editors

HISTORY.com works with a wide range of writers and editors to create accurate and informative content. All articles are regularly reviewed and updated by the HISTORY.com team. Articles with the “HISTORY.com Editors” byline have been written or edited by the HISTORY.com editors, including Amanda Onion, Missy Sullivan, Matt Mullen, Christian Zapata and Cristiana Lombardo.

Fact Check

We strive for accuracy and fairness. But if you see something that doesn't look right, click here to contact us! HISTORY reviews and updates its content regularly to ensure it is complete and accurate.

Citation Information

Article title
Astronomer Galileo dies in Italy
Website Name
History
Date Accessed
May 13, 2025
Publisher
A&E Television Networks
Last Updated
February 18, 2025
Original Published Date
February 09, 2010

History Every Day

Sign Up for "This Day in History"

Uncover fascinating moments from the past every day! Learn something new with key events in history, from the American Revolution to pop culture, crime and more.

By submitting your information, you agree to receive emails from HISTORY and A+E Global Media. You can opt out at any time. You must be 16 years or older and a resident of the United States.