Galileo suffered a trail and house arrest.
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Copernicus put forward the idea that the Sun, rather than the Earth, was at the center of the universe.
They proposed the idea that the sun is the center of the universe. this started the scientific revolution.
Copernicus's model of the solar system was published in 1543. This model had the Sun at the centre and was taken up by Galileo in a way that caused a big row with the catholic church. Kepler produced a later model in 1609 that eventually replaced all the earlier models. It used Copernicus's idea of placing the Sun at the centre, but it used the novel idea of elliptical orbits. From a scientific point of view, whether the Earth or the Sun is at the centre is not a highly significant part of the theory. However it is of religous significance because it involves interpretation of the scriptures, and this is how Galileo's intervention led him into trouble. Newton's discoveries in gravity and the laws of motion showed that elliptical orbits, with the Sun at the centre, could be explained by theory, and so we use Kepler's model today, and everyone accepts that including the Church.
Copernicus changed the way the universe was though of when he presented the heliocentric theory. Until he came around, everyone thought the earth was the center of the universe. Copernicus presented the idea that the sun was, not the earth!!! It is a legend that he had a massive stroke and woke up from a loss of consciousness to see his newly published book, De Revolutionibus Orbium Coelestium (On the Revolutions of the Heavenly Spheres) in his hands. He died not long after that, in May of 1543, and it was a peaceful death, for he knew that his belief had been released into the world. Copernicus did not suffer much persecution, if any, while he was alive, but his name and reputation suffered a beating after his death until it was proven right by Galileo and his new invention, the telescope. The pope did not like Copernicus' far-fetched idea, and even John Calvin and Martin Luther thought it was foolish and spoke out against it. Feeling pressure, the Catholic Church placed Copernicus' book on the forbidden list and banned its teachings in about 1650. The ban wasn't released until 1822! This is an example of how you can be persecuted for new ideas, no matter how accurate they are, but still, it could change history!
Kepler completely replaced Copernicus's theory of the orbits of the planets, which was based on circles an epicycles, with a new theory using elliptical orbits. However Kepler retained Copernicus's idea of placing the Sun at the centre.
Copernicus, Kepler, and Galileo; about 400 years ago
He believed the idea the heliocentric model created by Copernicus
No, that was what the scriptures said, but Copernicus's model, also promoted by Galileo, had the Sun at the centre instead.
In the opinion of many historians, Galileo Galileo studies of the universe led to Sir Issac Newton's discoveries on the laws of gravity. Galileo's support of Copernicus and his idea that the earth revolved around the sun, led Galileo into prison as this idea went against Church theology. After Galileo recanted he was freed.
Copernicus theorized that the earth revolved around the sun, and created the Copernican theory in the 16th. However it wasn't until the 17th century that Galileo Galilei brought the first supporting evidence that it does.
The credit is usually given to Copernicus or Galileo, but others may have come up with the idea earlier.
Nicolaus Copernicus, Johannes Kepler, and of course Galileo all had hands in challenging the geocentric model and promoting the idea of heliocentrism.
Galileo had a quarrelsome nature and said he was celeverer than all the cardinals. So his disagreement was with the whole Catholic Church. He promoted Copernicus's theory, which the church authorities said was OK as a theory, but he was told not to say it was the absolute truth, because that contradicted the scriptures as they stood then. But later he published a book supporting the heliocentric idea, in which the Pope was portrayed as a simpleton. He was asked for proof of the theory, but could not produce one in court and recanted his views. But many years later Kepler's theory of the planets' orbits was backed up by Newton's theoretical discoveries. The new theory, which is still in use today, retained Copernicus's idea of having the Sun at the centre, so the heliocentric idea promoted by Copernicus and Galileo was eventually demonstrated to be correct, many years after their lifetimes.
Galileo did not have his own theory. He was a supporter of Copernicus's heliocentric theory and an opponent of the geocentric Ptolemaic theory. Eventually both theories were rejected in favour of Kepler's theory. But Kepler's theory uses the heliocentric idea from Copernicus's theory.
Galileo got his idea from a professor
This was because Catholic teachings back then were based on the idea that the Earth was the center of the Universe. Threatened by torture, Galileo was forced to deny that the Earth moves and that the Sun was the center of the Universe.
copernicus