Early Solar System instability triggered by dispersal of the gaseous disk
The Solar System’s orbital structure is thought to have been sculpted by an episode of dynamical instability among the giant planets1–4. However, the instability trigger and timing have not been clearly established5–9. Hydrodynamical modelling has shown that while the Sun’s gaseous protoplanetary disk was present the giant planets migrated into a compact orbital configuration in a chain of resonan