Cometary collisions on the Moon and Mercury

@article{Schultz1980CometaryCO,
  title={Cometary collisions on the Moon and Mercury},
  author={Peter H. Schultz and Leonard J. Srnka},
  journal={Nature},
  year={1980},
  volume={284},
  pages={22-26}
}
Unusual swirl patterns of bright and dark material on the Moon and Mercury are proposed to be remnants of collisions with gas/dust-rich regions within a cometary coma. This interpretation provides important new clues for understanding cometary fine structure, impact effects of low-density material, and the origin of certain pronounced magnetic anomalies. 
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