A collisional family of icy objects in the Kuiper belt

@article{Brown2007ACF,
  title={A collisional family of icy objects in the Kuiper belt},
  author={Michael E. Brown and Kristina M. Barkume and Darin Ragozzine and Emily L. Schaller},
  journal={Nature},
  year={2007},
  volume={446},
  pages={294-296}
}
The small bodies in the Solar System are thought to have been highly affected by collisions and erosion. In the asteroid belt, direct evidence of the effects of large collisions can be seen in the existence of separate families of asteroids—a family consists of many asteroids with similar orbits and, frequently, similar surface properties, with each family being the remnant of a single catastrophic impact. In the region beyond Neptune, in contrast, no collisionally created families have… 

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