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Neptune was invented when the orbit of Uranus didn't match our theory of gravity.

• jeffwass 9y ago
  Vulcan was 'invented' when the orbit of Mercury didn't match our theory of [non-relativistic] gravity. Then recanted when we improved our knowledge of gravitation. https://en.m.wikipedia.org/wiki/Vulcan_(hypothetical_planet) https://en.m.wikipedia.org/wiki/Vulcan_(hypothetical_planet)
  • macspoofing 9y ago
    What's the moral of the story?
    • effie 9y ago
      Sometimes proposed invisible body of mass turns out to really exist, sometimes it is discarded as no longer necessary.
      • macspoofing 9y ago
        Exactly the point I wanted to make to OP - who was skeptical of dark matter because we didn't throw out General Relatively, one of the most tested and successful theories of all time, when some aberrations were noticed.