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Galileo's World-Changing Telescope Turns 400

By Jason Farago,  Newser Staff

Posted Aug 25, 2009 10:37 AM CDT

(Newser) – On August 25, 1609—400 years ago today—Galileo Galilei introduced Venice to the telescope, and the discoveries it enabled were every bit as revolutionary as Darwinism, writes Peter Walker of the Guardian. With his telescope, a brown stick weaker than today's store-bought models, Galileo detected moon-like phases of Venus, proving that planets revolve around the sun and not Earth. That brought Galileo scientific immortality, but not before he suffered years of persecution.

The Catholic Church was not happy with Galileo's work, which confirmed Copernicus' century-old speculation that human beings did not stand at the center of the universe, and he spent the last decade of his life under house arrest. Galileo's telescopes now belong to collections in Florence, but one of them is currently on loan to the Franklin Institute in Philadelphia, where visitors can see the instrument that reoriented our place in space.

Galileo's telescope, with a handwritten note specifying the magnifying power of the lens, is on view at the Franklin Institute in Philadelphia.
Galileo's telescope, with a handwritten note specifying the magnifying power of the lens, is on view at the Franklin Institute in Philadelphia.   (AP Photo/Matt Rourke)
The exhibition is open until Sept. 7.
The exhibition is open until Sept. 7.   (AP Photo/Matt Rourke)
An etching of astronomer Galileo Galilei.
An etching of astronomer Galileo Galilei.   (AP Photo, File)
The Vatican in 2008 recast Galileo, the most famous victim of its Inquisition, as a man of faith, just in time for the 400th anniversary of Galileo's telescope.
The Vatican in 2008 recast Galileo, the most famous victim of its Inquisition, as a man of faith, just in time for the 400th anniversary of Galileo's telescope.   (AP Photo/Sandro Pace)
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COMMENTS
Showing 3 of 9 comments
NewserScooter
Aug 27, 2009 4:11 AM CDT
Forderon, You in fact could place a center anywhere. Almost everything in space is relative anyway. Both the Sun and the Earth are moving relative to the universal center.
Mad
Aug 25, 2009 7:50 AM CDT
Note to self: Refresh before replying
Mad
Aug 25, 2009 7:48 AM CDT

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