What science thought was fact centuries ago isn't essentially true today.
There was no science centuries ago. You had no choice but to believe what the Church taught you, or else you were branded a heretic and perhaps even killed.
The earth has been proven to be round, we are not the center of the universe,
We know this thanks to science, which replaced superstitions. These established understandings are now known and aren't going to change anytime soon. Just like how we know those bones belonged to a giant ape and not to dragons as the Chinese once believed. Science is the reason we know this giant ape once existed, and this fact isn't changeable.
the universe is infinite, etc.
The universe is not infinite. It is very vast, but it has a finite size which we are able to measure.
New discoveries are made all the time, and science is constantly changing because of this.
Theories change, but science itself remains the same. The fact that those bones belonged to a giant ape isn't a theory, though. Its fact.