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Pluto was discovered because Uranus and Neptune have orbits that vary from their expected paths. In searching for an object large enough to affect these planets, scientists discovered Pluto. Pluto, however, is not large enough to have any major effects on either Uranus or Neptune.


The StarChild site is a service of the High Energy Astrophysics Science Archive Research Center (HEASARC), Dr. Alan Smale (Director), within the Astrophysics Science Division (ASD) at NASA/GSFC.

StarChild Authors: The StarChild Team
StarChild Graphics & Music: Acknowledgments
StarChild Project Leader: Dr. Laura A. Whitlock
Responsible NASA Official: Phil Newman

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