Image of Jean Dominique Cassini (1625-1712), French Astronomer. Engraving, XVIIth Century. Full Credit: Jacques Boyer / Roger-Viollet / Granger -- All Rights Reserved. From Granger - Historical Picture Archive
Earth Shaker - #OnThisDay in 1625, the Italian Astronomer, Jean-Dominique Cassini, was born! He is famous for his discoveries regarding planet Saturn's rings and its moons. Hundreds of years later, a spacecraft