‘On This Day in Space’ Video Series on Space.com Iapetus was the second moon anyone had ever found orbiting Saturn, and it was the first of four moons Cassini would discover at the ringed plane ...

Atlas was one of the Titans in Greek mythology, son of Iapetus and the Oceanid Clymene, and brother of Prometheus. After the war against the Olympian gods, Zeus condemned him to hold up the vault of ...