During the summer of 1609, Galileo built a telescope (20x power) and discovered many things about the universe. Some of his discoveries were observing that the surface of the moon was not smooth and seeing more stars than humans of his day ever believed were possible to exist.
1609
Answer He discovered it in 1609 date answered 2/25/12
September 12, 1609.
Nobody
for his accomplishment
Hendry Hudson Discovered the Hudson river in 1609
Yes, Henry Hudson dicovered the Hudson River in 1609
He discovered the Hudson bay on 1609
Gailieo changed the western civilization , by saying that the sun was the center of the Universe and the earth rotated round the sun , and not the sun around the earth. Even when he was told that he could face death for this silly belief and hebetter change his view, Gailieo said all the same earth does rotate around the sun.
The scientist Johannes Kepler discovered that the earth orbits the sun. In his book The New Astronomy from 1609 he explained how he figured this out.
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Galileo Galilei discovered the craters on the Moon in 1609, when he observed them through a telescope he had developed. This observation played a crucial role in supporting the heliocentric model of the solar system proposed by Copernicus.