Final answer:
True. The largest gap in Saturn's rings, the Cassini Division, is created by two shepherd moons - Pandora and Prometheus.
Step-by-step explanation:
True.
The largest gap in Saturn's rings, known as the Cassini Division, is indeed created by two shepherd moons - Pandora and Prometheus.
These small moons, each about 100 kilometers in diameter, serve as shepherd moons by gravitationally influencing the ring particles and keeping them confined to a narrow ribbon. The presence of these shepherd moons can be observed in close-up images of Saturn's F Ring.