He thought the sun evolved around earth
he thought that the sun evolved around the earth
because
He did this when he was studying his Astronomy in his lifetime.
The heliocentric theory is one which all planets revolve around the sun. Prior to this, there was a theory where all planets, including the sun, revolved around Earth. Galileo proved this theory to be false and proposed this heliocentric theory.
Galileo expressed his support of the Copernican theory that the Earth and planets revolved around the Sun. But that wasn't exactly a trial.
The heliocentric theory is one which all planets revolve around the sun. Prior to this, there was a theory where all planets, including the sun, revolved around Earth. Galileo proved this theory to be false and proposed this heliocentric theory.
False
The astronomical telescope.
He was arrested after publishing a book that advanced the heliocentric theory (the Earth going round the Sun) as fact and not just a scientific theory. The book portrayed the Pope as an imbecile, and as Galileo had already been warned that he could not say the movement of the Earth is a fact without proof, he was put on trial for heresy. At that time there was no proof that the theory is correct and Galileo was forced to admit it and retract. In later centuries more and more scientific evidence was discovered that forced everyone to accept that the Earth is in orbit round the Sun. So in a way Galileo was right all along but he just got himself into trouble with his aggressive behaviour. He made important scientific discoveries of his own but the heliocentric theory is not on the list.
It's called the heliocentric theory (helios is sun) but it was not a fully fledged theory until well after Galileo's time.
Galileo theory
Contrary to most people of the 14th Century, Copernicus believed that the Earth revolved around the sun. Galileo later proved Copernicus' theory to be correct.