[151] It had been Marius's names for the key moons, however, that stuck: Io, Europa, Ganymede, and Callisto. The discovery was A significant level in favour on the heliocentric theory of the motions from the planets by Nicolaus Copernicus; Galileo's outspoken assistance in the Copernican principle triggered him staying tried https://samirl655bsi3.wikitidings.com/user