When Galileo observed that there are satellites which orbit the planet Jupiter, this was clear evidence that not everything orbits the Earth.
the complete cycle of Venus' phases
The complete cycle of Venus' phases.
Galileo Galilei constructed telescopes to conduct his observations. He also disproved the Ptolemaic model.
Galileo and Ptolemy
Galileo was the first to study the sky with a telescope, record the results, and draw scientific conclusions. Before that, however, there were many people who studied the planets, and in ancient times there was a model explaining how the planets move among the stars, devised by Ptolemy.
Aristotle said the earth was in the center. Ptolemy supported Aristotle and added to it. Copernicus said the sun was in the middle. Galileo also said the sun was in the center and added to Copernicus.
Galileo reasoned that the phases of Venus could not be explained, if the Earth is in the center of the system of the planets. So Ptolemy's geocentric system could not be correct. Edit: That's correct, but it doesn't answer the question, which is about Jupiter. The idea is that Jupiter having moons proved that there are other places that can be centres of motion, apart from Earth.
No, Ptolemy did.
Ptolemy claimed everything must go around the Earth, but the moons of Jupiter obviously are not going around the Earth.
Galileo's observations with his telescope supported the concept of heliocentricism. He noted that the satellites of Jupiter and Venus, based on their range of phases, did not match geocentricism supported by Ptolemy. He noted that based on these findings, that the Heliocentric theory was correct.
Galileo made a small telescope with which he made scientific observations which went against the prevailing consensus around the system of Ptolemy. At that time many people, including religious leaders such as Luther and Calvin believed incorrectly that the system of Ptolemy agreed with the Bible. In particular, the Roman Catholic church, which had civil, as well as ecclesiastical authority, condemned the scientific observations of Galileo as heresy, and forced him to retract them under threat of death. It also seems that it was the scientific opponents of Galileo, those who supported the system of Ptolemy and Aristotle, who stood to lose the most by being proven wrong. The Roman Catholic church of the day was thus in a sense 'used' by this group to get the findings of Galileo suppressed. So, to put it simply, Galileo certainly demonstrated the folly of trying to marry the Bible to scientific theories which can and do become outdated. He certainly did not disprove the Bible itself, as the Bible does not support the system of Ptolemy. Yes. Both Gallileo and Copernicus disproved the Bible's teachings that the Earth was the center of the Universe. "The geocentric model held sway into the early modern age; from the late 16th century onward it was gradually replaced by the heliocentric model of Copernicus, Galileo and Kepler. Today, geocentric cosmology survives as a literary element within alternate history science fiction."
Galileo Galilei constructed telescopes to conduct his observations. He also disproved the Ptolemaic model.
Ptolemy
he studied at barnes and noble
Ptolemy would have made his observations in Egypt probably Alexandria around AD120 up to his death in AD168.
Galileo and Ptolemy
late 1500's
Galileo explained the backwatds motion of the planets
Ptolemy would have made his observations in Egypt probably Alexandria around AD120 up to his death in AD168.