Moons of jupiter: The four Galilean moons

The four largest satellites of Jupiter, Io, Europa, Ganymede, and Callisto are known as the Galilean Moons. They were discovered in January 1610 by Galileo Galilei, and they were the first objects found to orbit another object. But, apart from this, is there anything else that makes the Galilean moons extraordinary? The answer to this … Read more Moons of jupiter: The four Galilean moons