394-neptune-rings-diagram-dixon –This three-quarter view diagram illustrates the structure of Neptune's dark, dusty ring system and its small inner moons. The gas giant is centered within concentric rings composed of fine debris, highlighting the localized clumps or "ring arcs" embedded within the outermost Adams ring. A small trailing alignment of inner shepherd satellites is depicted orbiting near the ring planes against a pitch-black background. for Scientific American
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