Labels:text | font | document | paper | black and white OCR: (1625-1712) GIOVANNI DOMENICO CASSINI was an Italian astronomer who gave his name to his best- known discovery, the Cassini Division, which is the main gap in the rings of Saturn. Cassini was a skillful observer of the night sky who discovered four of Saturn's moons, and spent 15 years observing Io, Europa, Ganymede, and Callisto - Jupiter's four Galilean moons. He also made a measurement of the distance from the Earth to Mars, which meant that other distances within the Solar System could also be calculated mathematically. 1625 Born on June 8 in Perinaldo near Nice, then part of Italy but now in France. He receives his early education in Vallebone and Genoa in Italy, where he shows particular talent in astronomy and mathematics. 1644 Becomes an assistant at the observatory in Panzona, clo ...
