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Ask an Astrobiologist has received nearly a thousand questions about Nibiru and 2012, with more than 200 answers posted. Please read a summary of the answers that have already been posted, use the search feature and read the FAQ’s before submitting questions on these topics.
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Question
Do we have any idea what is pulling on the orbit of Pluto? I have heard several things, from a black hole to a star to a brown dwarf.
Pluto is being pulled gravitationally by everything in the universe, with the Sun, Jupiter, Saturn, Uranus, and Neptune dominating. There is nothing strange about its orbit, and no evidence of any massive objects orbiting the Sun beyond Pluto: no undiscovered planets, nearby stars, or brown dwarfs. I don’t know where you have heard such rumors, but probably not from any reputable science source. David Morrison
NAI Senior Scientist
January 31, 2008
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