[151] It had been Marius's names for the most important moons, nevertheless, that caught: Io, Europa, Ganymede, and Callisto. The discovery was A significant level in favour on the heliocentric principle with the motions of your planets by Nicolaus Copernicus; Galileo's outspoken assist from the Copernican idea led to him https://christiang321sic0.nico-wiki.com/user