All of the planets of our solar system, including Earth, orbit the Sun. This seems like common knowledge today, but it was a revolutionary idea back in the days of astronomer, Nicolaus Copernicus. There was so much objection to this idea that decades after his death in 1543, the Catholic Church banned a book he had written on this topic. While Copernicus believed that the Sun is orbited by the planets in our solar system, this depiction of Copernicus's heliocentric system shows the flaw in his theory: the planets shown here move in perfect circles around the Sun. However, astronomer Johannes Kepler would later prove that the planets' orbits are more elliptical. Try to spot Earth in the image. You'll have to look carefully for Earth’s Latin name, Terra!