He improved on the existing telescope around 1609
yeah
at his lab in 1593.
The telescope was actually invented by Hans Lippershey in 1608; Galileo merely improved it.
He didn't he improved the existing telescope and turned it to astronomical use around 1609
yes he used it when he discovered all the moons of jupiter
Galileo Galilei didn't actually invent the telescope but he made vast improvements to the first design.
Galileo didn't invent anything he just helped improve the telescope.
Galileo Galilei is primarily known for his improvements to the telescope, which he used to observe the moons of Jupiter and sunspots. He did not invent the telescope, but his contributions to its design and use revolutionized astronomy.
because he was a curious person and wanted to understand principles behind everyday phenomenonhe invented the telescope
Refracting telescope
Galileo made his telescope in 1609, based on descriptions of instruments made in the Netherlands a year earlier. Despite what a depressingly large number of people would have you believe, he did not invent the telescope (though his was arguably an improvement upon the earlier ones).
Galileo Galilei . He only helped support the theory through his observations , he didn't invent the model, Copernicus did.