A theory about dwarf planet Ceres from xkcd


xkcd

Randall Monroe at xkcd has a theory about the white spot that is becoming visible on Ceres, the dwarf planet NASA's Dawn spacecraft is closing in on.

  1. http://xkcd.com/1476/
  2. http://blog.cosmosmagazine.com/blog/2015/1/22/new-dawn-captures-image-of-asteroid-ceres
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