How did Galileo test his theory of the sun at the centre of the solar system?

Answer 1

The heliocentric model of the solar system has never been proven, and most likely

never will be. It's just a theory. One which does a spectacularly successful job of

explaining the motions of things that we see in the sky, and making predictions

that we find to be true when we test them.

Galileo tilted in the direction of the heliocentric theory when he turned his toy

telescope toward the sky, and saw four moons in orbit around Jupiter. Seeing

that, he said to himself "Gal !", he said, "If I can see things circling Jupiter, then

there's no reason to go on believing that everything in the sky must be circling

around the Earth. But don't let anybody else hear you saying this, because the

news will get out, and the Church will not like it."

Answer 2

i think the change of the seasons