Meet Frank, Saturn's 60th Moon

Scientists have discovered Saturn’s 60th moon, and are hinting that more could exist. In May, cameras aboard the Cassini spacecraft captured the “extremely faint object,” which scientists have officially designated a moon and tentatively named Frank. Composed mostly of ice and rock, Frank is about a mile wide and orbits between two other Saturnian moons, Methone and Pallene.

Scientists say the close proximity between Frank and its Saturnian cousins suggests the existence of a network of more hidden moons. Before the Cassini mission’s launch in 1997, astronomers only knew about 18 of Saturn’s satellites and have since uncovered 42 more. Frank will receive a new, official name from the International Astronomical Union. (More Saturn stories.)