14 Fun Facts About the Galilean Moons of Jupiter: A 15-Minute Book
On January 7, 1610, Italian astronomer Galileo Galilei turned his newly developed telescope to Jupiter. He discovered four objects orbiting the giant planet. It took him another night’s observations to clearly distinguish between two of them. He called them “The Medicean planets”, after the Medici family. Find out more fun, fascinating facts about these four moons orbiting our largest planet.