Astronomy I: Solar System Models

This ancient Greek preceded Aristotle in developing ideas about the geocentric model

Newton's discovery of this force places the sun in the middle of our system due to its big mass

The discovery of 4 moons orbiting this body in our solar system was a 'nail in the coffin...'

In addition to observations, this was a major problem for believers of heliocentrism

The prefix 'helio' means