Before the 17th century most people believed in a geocentric model of the solar system. Dallas explains the geocentric model and then the heliocentric model developed by Kepler, Copernicus and ...

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 ...

A 500-year-old discovery of a compass has been linked back to Nicolaus Copernicus - a Polish astronomer who proposed the heliocentric model of the solar system in the 1500s. This model ...