The flux of small near-Earth objects colliding with the Earth

@article{Brown2002TheFO,
  title={The flux of small near-Earth objects colliding with the Earth},
  author={Peter Brown and Richard Spalding and Douglas Orson Revelle and Edward Tagliaferri and Simon Peter Worden},
  journal={Nature},
  year={2002},
  volume={420},
  pages={294-296}
}
Asteroids with diameters smaller than ∼50–100 m that collide with the Earth usually do not hit the ground as a single body; rather, they detonate in the atmosphere. These small objects can still cause considerable damage, such as occurred near Tunguska, Siberia, in 1908. The flux of small bodies is poorly constrained, however, in part because ground-based observational searches pursue strategies that lead them preferentially to find larger objects. A Tunguska-class event—the energy of which we… 
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