In 1508, Nicolaus Copernicus developed a celestial model of a heliocentric planetary system that transformed the way we view the universe. This bold theory, contrary to the geocentric ...

In the annals of history, Nicholas Copernicus is celebrated as the groundbreaking astronomer who toppled the geocentric view and unveiled the heliocentric model, placing the sun at the center of our ...

Dallas explains the geocentric model and then the heliocentric model developed by Kepler, Copernicus and Galileo. However, the orrery does not have the correct scale. Dallas goes outside ...