Bennu’s near-Earth lifetime of 1.75 million years inferred from craters on its boulders

@article{Ballouz2020BennusNL,
  title={Bennu’s near-Earth lifetime of 1.75 million years inferred from craters on its boulders},
  author={R.‐L. Ballouz and Kevin J. Walsh and O. S. Barnouin and Daniella N. DellaGiustina and Manar Al Asad and Erica R. Jawin and Michael G. Daly and William F. Bottke and Patrick Michel and Chrysa Avdellidou and Marco Delbo’ and R. T. Daly and Erik Asphaug and Carina A. Bennett and Edward B. Bierhaus and Harold C. Connolly and Dathon R. Golish and Jamie L. Molaro and Michael C. Nolan and Maurizio Pajola and Bashar Rizk and Stephen R. Schwartz and David Trang and Catherine W. V. Wolner and Dante S. Lauretta},
  journal={Nature},
  year={2020},
  pages={1-5}
}
An asteroid’s history is determined in large part by its strength against collisions with other objects 1 , 2 (impact strength). Laboratory experiments on centimetre-scale meteorites 3 have been extrapolated and buttressed with numerical simulations to derive the impact strength at the asteroid scale 4 , 5 . In situ evidence of impacts on boulders on airless planetary bodies has come from Apollo lunar samples 6 and images of the asteroid (25143) Itokawa 7 . It has not yet been possible, however… 
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