What information was missing that caused people of the time to disagree with Copernicus' model of the universe?

Answer 1

The model everyone believed in was the Geocentric model, where they thought everything revolved around the earth. Copernicus' model of the universe is called the Heliocentric model, stating that everything revolved around the sun. The information that was missing was proof or evidence that the universe in fact did revolve around the sun.

Said proof or evidence. was later provided by Galileo. His evidence stated that Jupiter has 4 moons revolving around it, not the earth. also. Venus goes through phases. When the moon is at one stage, Venus is also at a certain stage. In theory and in the Geocentric model, if the moon came to the same stage again, Venus would be at the same stage it was before when the moon was at this stage, which it was not.

Answer 2

One major missing piece of information was the lack of evidence for Earth's motion around the Sun, as people observed the Sun moving across the sky each day. Additionally, there was no solid explanation for why we didn't feel the Earth's motion if it was moving. The scientific understanding of gravity and inertia was also lacking at the time, which contributed to the resistance against Copernicus' heliocentric model.