he discovered it on
2006
Galileo Galilei
Galileo
Galileo
He found out that there was 4 moons on jupiter and stars on the milky way with the telescope that he built.
False. Galileo died in 1642. In 1609, 300 years before your question's year, he was using a telescope. There were no binoculars in his time. He would have been looking at the Milky Way then.
It didn't. The Milky Way has been known since long before the Hubble telescope was created. The spiral arm we call the Milky Way has been known since ancient times.
From a site far away from a city, you can see the milky way easily. It was probably first seen hundreds of millions of years ago.
No, Venus was already known of in Galileo's time.
Galileo did not discover Saturn. It was know of by the ancients. It can be seen at certain time without the aid of instruments.
nope
Galileo discovered Saturn's Rings in 1610