🇬🇧 – 🇮🇹 In 1625, the Italian astronomer Giovanni (Gian) Domenico Cassini di Perinaldo was born, an Italian mathematician, astronomer, engineer, doctor and biologist. He discovered four satellites of Saturn: Iapetus in 1671, Rhea in 1672, Dione and Tethys in 1684. He also discovered the Cassini Division in Saturn’s rings. Together with Hooke, Cassini is the discoverer…