Space Table of Contents Astronomy Solar System Inner Planets Outer Planets Earth Moon Other Space Objects Stars and Their Evolution Sun Galaxies and Universe Astronomy Who’s Who of Early Astronomy
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In 1543, Nicholas Copernicus stated that the moon revolved around Earth and that Earth and the other planets revolved around the Sun.
He also stated that the daily movement of the planets and the stars was caused by Earth's rotation.
Proving the S.C.M.
Galileo Galilei observed that Venus went through a full cycle of phases like the Moon's.
This only could be explained if Venus were orbiting the Sun.
Galileo concluded the Sun is the center of the solar system.Solar System Theories