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Q&A Two new planets orbiting the Sun beyond Pluto

What would happen if there was two more planets beyond Pluto, one with two times the size of Pluto and another with 4× the size of Mars, I'm curious to know what effects this would have on the plan...

2 answers  ·  posted 8y ago by Gerwin‭  ·  last activity 8y ago by Gerwin‭

Question planets gravity solar-system