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Astronomy

Dynamical Evolution of the Kuiper Belt and Its Resonant Populations

Quick fact

About 20% of known Kuiper belt objects are in a 3:2 resonance with Neptune, meaning they complete two orbits for every three of Neptune's—a configuration that explains their concentration in the 'Plutino' population.

Why this is interesting

We think of the outer solar system as a serene place, but the Kuiper belt is a fossil record of violent planetary migrations. Why do some icy bodies orbit in perfect lockstep with Neptune?

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Dynamical Evolution of the Kuiper Belt and Its Resonant Populations

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