Since dark matter is gravitationally "charged", by which I mean it has mass and attracts things, could it bunch together to form a planet?

  • 2
    $\begingroup$ possible duplicate of can we have a parallel earth made of dark matter? $\endgroup$
    – Kyle Kanos
    May 7 '15 at 3:34
  • 2
    $\begingroup$ While the question isn't quite the same, the answer by Chris White discusses why a planet couldn't be comprised of dark matter. $\endgroup$
    – Kyle Kanos
    May 7 '15 at 3:35
  • $\begingroup$ The minimum halo mass of dark matter is model dependent with some dark matter models allowing earth mass halos and other requiring the minimum halo size to be much larger. $\endgroup$
    – Virgo
    May 7 '15 at 4:16
  • $\begingroup$ It is not that simple, look at this model for the formation of the solar system en.wikipedia.org/wiki/Nebular_hypothesis . Dark matter with its unknown particles would be an extra complication in the story. $\endgroup$
    – anna v
    May 7 '15 at 13:49

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