Because the Catholic Church insisted that they could not change religious dogma until enough evidence was discovered to make it worth reconsidering.
In Galileo's lifetime there was just not enough evidence to change the Church's beliefs, but 50-60 years after his death the amount of evidence was increasingly convincing.
It was Galileo who quoted that the earth in not the center of the Universe.
His ideas went against their beleifs, that the Earth was the center of the universe and he agreed with ideas of Copernicus.
Galileo and Copernicus were two of the scientists to disprove Ptolemy's geocentric theory of the universe. The Ptolemaic theory stated that the center was earth.
You're thinking of Galileo; however, the fact that he had to deny, or "abjure," was that the Earth orbited the Sun instead of the other way around. People probably did think of the Earth as the center of the universe, however, the concept of "universe" was nothing like what it is today. Even the term used, "cosmos," meant both "universe" and "world."
Galileo raised ecclesiastic hackles because he challenged the church-sanctioned, astronomical doctrine of his day: that the the earth stood at the center of both the solar system and the known universe.
It was Galileo who quoted that the earth in not the center of the Universe.
Galileo concluded the that the earth wasn't the center of the universe because of how all the stars and planets moved. If the earth was truly the center of the universe, it wouldn't revolve.
cupercunicus- Actually it was Galileo
Galileo
Galileo found that the earth revolved around the sun and that it wasn't the center of the universe. He invented the telescope.
Galileo's book was about a dinner party in which a host challenges his guests to debate on whether the earth is the center of the universe.
No the church hated it.
Galileo Galilei
The Crime of Galileo posited that the Sun was the center of the universe instead of the Earth. The was directly opposed to the teaching of the Catholic Church, who deemed Galileo a heretic.
That Earth is not at the center of the universe - - radical thinking for his time.
Galileo, who struggled against the Catholic Church to have the theories of Copernicus accepted.
They believed in a heliocentric universe. This meaning that the earth was not the center of the universe, but that the sun was. However, many people , including the church, did not agree with this theory. Instead they believed in a geocentric universe. Plato and Aristotle believed in this theory.