New Horizon's LORRI instrument snapped this image of Jupiter's ring system February 24 from a distance of 4.4 million miles (7.1 million km). The image reveals a narrow ring, about 600 miles (1,000 km) wide, with a fainter sheet of dust inside it. Planetary scientists think the gravity of Jupiter's two innermost moons, Adrastea and Metis, may corral the narrow ring.