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Planetary science

Seeing double in the Kuiper belt

A small fraction of Kuiper-belt objects are known to be accompanied by large moons. These double worlds may have formed in the earliest days of the Solar System through comparatively gentle gravitational encounters.

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Figure 1: Pluto and its satellite Charon.



  1. Farinella, P., Davis, D. R. & Stern, S. A. in Protostars and Planets IV (eds Mannings, V., Boss, A. P. & Russell, S. S.) 1255–1282 (Univ. Arizona Press, Tucson, 2002).

    Google Scholar 

  2. Goldreich, P., Lithwick, Y. & Sari, R. Nature 420, 643–646 (2002).

    ADS  CAS  Article  Google Scholar 

  3. Veillet, C. et al. Nature 416, 711–713 (2002).

    ADS  CAS  Article  Google Scholar 


  5. Merline, W. J. et al. in Asteroids III (eds Bottke, W. F., Cellino, A., Paolicchi, P. & Binzel, R. P.) 289–312 (Univ. Arizona Press, Tucson, 2002).

    Google Scholar 

  6. Durda, D. D., Bottke, W. F., Asphaug, E. & Richardson, D. C. Bull. Am. Astron. Soc. 33, 1134 (2001).

    ADS  Google Scholar 

  7. Canup, R. M. & Asphaug, E. Nature 412, 708–712 (2001).

    ADS  CAS  Article  Google Scholar 

  8. Stern, S. A. Astron. J. 124, 2300–2304 (2002).

    ADS  Article  Google Scholar 

  9. Weidenschilling, S. J. Icarus 160, 212–215 (2002).

    ADS  Article  Google Scholar 

  10. National Research Council New Frontiers in the Solar System: An Integrated Exploration Strategy (2002);

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Correspondence to Daniel D. Durda.

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Durda, D. Seeing double in the Kuiper belt. Nature 420, 618–619 (2002).

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