[151] It was Marius's names for the key moons, having said that, that stuck: Io, Europa, Ganymede, and Callisto. The discovery was a major position in favour on the heliocentric concept with the motions of the planets by Nicolaus Copernicus; Galileo's outspoken help with the Copernican principle brought about him https://ernestk766jdv8.blogrelation.com/profile