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So it's entirely possible for one of these rogue planets to cross into our solar system and disrupt the stable orbits of any planet, including earth or the moon

• actually_a_dog 5y ago
  Sure, but a rogue planet would be far, far less disruptive than a star coming near enough to us to affect the Solar System. Such stellar flybys, according to a paper I linked in a previous comment, occur every ~23M years, and are, indeed, expected to act as a destabilizing force on the Solar System over long periods of time.