I am to write about what I learned this week. Most of this stuff I already knew from 4th and 5th grade History, but I will still relate some of it.
According to Ptolemy, the Earth is the center of the universe. It was a long time before Copernicus challenged Ptolemy by saying that the sun is the center of the universe. Copernicus also popularized the belief that the Earth and the other planets rotated, rather than being fixed, and he also broke the convention of circles being considered the divine shape that everything was built upon. Johannes Kepler also backed up Copernicus, as did Tycho Brahe.
I didn’t really like this week of astronomy; I could talk about other things I was taught like astrophotography and how telescopes and binoculars work, but I didn’t really enjoy learning about those things, so I don’t want to dwell on them for very long.