The trajectory, structure and origin of the Chelyabinsk asteroidal impactor

@article{Borovika2013TheTS,
  title={The trajectory, structure and origin of the Chelyabinsk asteroidal impactor},
  author={J. Borovi{\vc}ka and P. Spurn{\'y} and P. Brown and P. Wiegert and P. Kalenda and D. Clark and L. Shrben{\'y}},
  journal={Nature},
  year={2013},
  volume={503},
  pages={235-237}
}
Earth is continuously colliding with fragments of asteroids and comets of various sizes. The largest encounter in historical times occurred over the Tunguska river in Siberia in 1908, producing an airburst of energy equivalent to 5–15 megatons of trinitrotoluene (1 kiloton of trinitrotoluene represents an energy of 4.185 × 1012 joules). Until recently, the next most energetic airburst events occurred over Indonesia in 2009 and near the Marshall Islands in 1994, both with energies of several… Expand
166 Citations
The Chelyabinsk event
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