Two of Neptune’s Moons Dance Around Each Other as they Orbit

Neptune's moons Naiad and Thalassa are locked in a lunar dance. Image Credit: NASA/JPL

Like a long-married couple accustomed to each other’s kitchen habits, two of Neptune’s moons are masters at sharing space without colliding. And though both situations may appear odd to an observer, there’s a certain dance-like quality to them both.

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