yes Galileo Galilie discovered Saturn
Galileo did not discover any new constellations. Instead, he made important observations about the existing constellations and their movements in the night sky, using his telescope to study the stars and planets.
he found that the planets rotate around each other and that space is massive
no they have not
No, Venus was already known of in Galileo's time.
nope
The invention of the telescope by Galileo Galilei in the early 1600s helped early scientists discover more planets. By using telescopes to observe the night sky, astronomers were able to see celestial objects more clearly and detect planets that were previously invisible to the naked eye.
No, it was Johannes Kepler who discovered that planets orbit the Sun in elliptical paths. Galileo's observations of the moons of Jupiter and phases of Venus supported the heliocentric model proposed by Copernicus.
Galileo's greatest discovery was the discovery of jupiter's moons and rings.
In astronomy, he used a telescope.
Sun spots
In the year 1610
he discovered it on