Sera-and-Mine

  Archive    GALILEO GALILEI: The Starry Messenger      `eawood (https://www.deviantart.com/eawood) eawood (https://www.deviantart.com/eawood)      :iconmonteirohq: monteirohq (https://www.deviantart.com/monteirohq)      So above Twitter Facebook Google+     February 15 marks Galileo’s 461st birthday. The man has a long list of accomplishments in the field of astronomy attributed to his name, including improving and developing the telescope, discovering sunspots, and proving that earth was not the center of the universe. One of Galileo’s most widely-known accomplishments is the discovery of Jupiter’s four largest moons, also known, aptly, as the Galilean Moons. Their names—Ganymede, Io, Callisto, Europa̵