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1564-1642  Italian astronomer who perfected the [[telescope]] and was persecuted for adhering to the theory of [[Copernicus]].

1564-1642  Italian astronomer who perfected the [[telescope]] and was persecuted for adhering to the theory of [[Copernicus]].

In 1609, Galileo made his most famous invention, the telescope.  It was modeled after other telescopes made in Europe. With it, he was able to witness a supernova, observe our moon, and document the phases of Venus. He also located sunspots. These discoveries helped support the Copernican system.

In 1609, Galileo perfected the telescope.  It was modeled after other telescopes made in Europe. With it, he was able to witness a supernova, observe our moon, and document the phases of Venus. He also located sunspots. These discoveries helped support the Copernican system.