I Are orbital resonances constructive or destructive?

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Orbital resonances can have both constructive and destructive effects on celestial bodies. In Saturn's case, the resonances of its moons help clear gaps in its ring structure, such as the Cassini division. Conversely, the 2:3 resonance between Neptune and Pluto demonstrates how resonances can stabilize orbits. The apparent contradiction arises because for some orbits to be stable, others must be unstable, leading to a dynamic balance. Ultimately, orbital resonances contribute to both the creation of gaps and the stabilization of certain orbits.
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If I understand correctly, orbital resonances of some of Saturn's moons are responsible for clearing out gaps in Saturn's ring structure (like the Cassini division). But I've also read that Neptune and Pluto are in a roughly 2:3 orbital resonance. So, do orbital resonances pull matter out of a stable orbit (thus creating ring gaps on Saturn)? Or do they lock objects into a stable pattern (Neptune/Pluto)? Or do they really do both? And if both, how can you explain that seeming contradiction? Thanks!
 
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There is no contradiction. In order for some orbits to be relatively stable, others must be relatively unstable (otherwise all orbits would be equally stable). Over time, bodies move from relatively unstable trajectories to relatively stable ones.
 
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