Galileo had a theory, it was that the earth was NOT in the centre of the solar system like everyone thought, he made the first telescope and proved everyone wrong by looking into space and seeing that the sun was in the centre of the solar system, not the earth, doing this he also invented the telescope.
They taught that the sky was perfect and unchanging.
Galileo Galilee
Galileo.
Galileo supported the Copernican system, but Aristotle did not. The Copernican system was a belief that the sun was the center of the solar system.
They both belived that the Sun was in the center of the solar system.
Galileo discovered the sun is the center of the solar system, he improved the telescope, he proved that the moon has craters on it, he claimed Venus has phases, and he observed sun spots on the sun.
Copecnicus thought the solar system was heliocentric(earth and the other planets revolved around the sun). Galileo lso thought the solar system was heleocentric. They were both right the solar system is Heleocentric.
Galileo Galilei made an educated guess (and was later on proven to be correct) that the Sun is in the middle of our Solar System.
Galileo Galileo discovered the objects in the solar system orbited the sun not the earth
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Galileo
The Solar System I believe...
Galileo Galilei
Galileo's about the solar system got him arrested for a decade (10 yrs).
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It was accepted.
Galileo