Held an Earth-centered view of the Universe

Proved that galaxies exist beyond the Milky Way

First to use a telescope as a scientific instrament

Held a Sun-centered view of the universe

Believe the Moon and the Sun revolved around the Earth, and the rest of the planets revolved around the Sun

Three laws of planetary motion

Discovered four of Jupiter's moons

Showed that gravity keeps the planets in orbit

His data was used by Kepler

Discovered the planets had elliptical orbits

Teachers: Create FREE classroom games with your questions Click for more info!
©2007-2024 Review Game Zone | About | Privacy | Contact | Terms | Site Map