PASADENA, CALIFORNIA — Thalassa and Naiad appear to be locked in an intricate "dance of avoidance" that keep their respective orbits stable, according to NASA. <br /><br />Thalassa and Naiad are described as small and tic tac and shaped, with computations of their mass and size showing the density of ice water.<br /><br />Thalassa circles Neptune every seven hours and thirty minutes, while Naiad completes the circuit every seven hours, but on an orbit tilted by five degrees relative to Thalassa.<br /><br />Viewed from Thalassa, Naiad appear to dance in a wave like pattern, passing twice from above and twice from below.<br /><br />NASA researchers said this behavior between celestial bodies is called a resonance, but the specific pattern of these moons have never been seen before.<br /><br />According to researchers, Neptune disrupted its original satellite system when it captured its giant moon, Triton.<br /><br />The disruption caused Naiad to veer into a tilted orbit before it settled into the ballet-like resonance with Thalassa.
