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Name: Jim Vercouteren
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Question:
What are the chances of Pluto and Neptune crashing into each other?



Replies:
Virtually zero. Quoting from the text "The Solar System" by Encrenaz and Bibring, (1990) "...Pluto never comes closer to Neptune than 2.5 thousand million kilometers... The fact that the periods of Neptune are in a simple ratio is the result of a dynamical resonance that has been discovered recently, and which corresponds to a stable state: any modification of the trajectory under the influence of an external perturbation would be followed by a return to the present state of equilibrium."

RC Winther


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