The one-page document contained the draft of a letter to accompany a presentation by Galileo of a recently-built telescope in 1609. At the bottom of the paper, much more significant if it weren't ...

Galileo's Journal: 1609-1610. by Jeanne K. Pettenati ages 7 and older. December 30, 2006 at 7:00 p.m. EST. If you do experiments in science class, you have Galileo Galilei to thank.

Explore Galileo Galilei's early life and astronomical journey from groundbreaking discoveries to two different Church confrontations. ... In 1609, Galileo constructed his first telescope, ...

The Michigan letter purported to be a draft of an August 24, 1609, letter that Galileo wrote to the doge of Venice describing his observations with a telescope (occhiale) he had constructed.

Galileo's Telescope Travels Far, ... The telescope had a magnifying power of 20. By today's standards, that's not very strong, but in 1609, Galileo's telescope surpassed all others.

The first publication by Galileo Galilei has set a new auction record for the celebrated astronomer, selling for $1.5 million at Christie's.

On Aug. 25, 1609, Galileo Galilei climbed to the top of the bell tower of St. Mark's Basilica in Venice and showed the leaders of that glorious city-state something new -- a telescope, that ...

NASA releases stunning Webb Telescope images, previewing discoveries to come 03:29. For nearly a century, the library at the University of Michigan had proudly displayed the so-called "Galileo ...

Galileo Galilei (1564-1642). ... Galileo was, by July 1609, giving it his undivided attention. Moving quickly, by the end of August he had constructed a 9X telescope.

By Claire O'NeillExactly 400 years ago in 1609, one Galileo Galilei popularized a new invention: the telescope. The man had crazy gadgets to support crazy theories — such as Copernicus' idea ...

Contrary to what many people think, Galileo did not invent the telescope. In this video segment adapted from NOVA, the Italian physicist and mathematician improves on an existing spyglass design ...

Adapted from an essay by Saswato R. Das on Galileo's contribution to science. Galileo Galilei, born in 1564 in Pisa, Italy, is considered by many to be the father of modern science.