Time evolution of rubble-pile aggregates. (a) Unstable configuration leading to breakup (ρ_b=1092 kg m⁻³, Ω=10⁻³ rad s⁻¹). Snapshots taken at 0, 8, 16, 32, and 48 min. (b) Unstable configuration, but able to reshape to a new stable aggregate (ρ_b=1747 kg m⁻³, Ω=9×10⁻⁴ rad s⁻¹). Snapshots taken at 0, 16, 56, 88, and 236 min. The time stamps refer to the physical time of the simulated scenario, not to the computational time.