One little rock can cause a chain reaction by hitting bigger and bigger pieces. Ella inadvertently sends a rock on a collision course for Saturn’s moon, Prometheus. That’s where Ella’s dad has gone to work on a stalled vehicle.
One little rock can cause a chain reaction by hitting bigger and bigger pieces. Ella inadvertently sends a rock on a collision course for Saturn’s moon, Prometheus. That’s where Ella’s dad has gone to work on a stalled vehicle.
