[151] It was Marius's names for the most important moons, even so, that caught: Io, Europa, Ganymede, and Callisto. The discovery was A serious stage in favour on the heliocentric principle of your motions from the planets by Nicolaus Copernicus; Galileo's outspoken assist with the Copernican principle brought about him https://robertb221six9.daneblogger.com/profile