Origin of the cataclysmic Late Heavy Bombardment period of the terrestrial planets

@article{Gomes2005OriginOT,
  title={Origin of the cataclysmic Late Heavy Bombardment period of the terrestrial planets},
  author={Rodney Gomes and Harold F. Levison and Kleomenis Tsiganis and Alessandro Morbidelli},
  journal={Nature},
  year={2005},
  volume={435},
  pages={466-469}
}
The petrology record on the Moon suggests that a cataclysmic spike in the cratering rate occurred ∼700 million years after the planets formed; this event is known as the Late Heavy Bombardment (LHB). Planetary formation theories cannot naturally account for an intense period of planetesimal bombardment so late in Solar System history. Several models have been proposed to explain a late impact spike, but none of them has been set within a self-consistent framework of Solar System evolution. Here… 
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