Chapter One: Our picture of the universe
🌎Aristotle and Ptolemy believed that the earth was the center of the universe
🌎Copernicus argued that the sun was the center of the universe. Centuries later Kepler and Galileo updated this theory and determined the planets move in ellipses
🌎Newtons theories posited that gravity pulls bodies together based on mass. Leading to the idea of the big bang
— Dec 01, 2025 08:04AM
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