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Mystery rays traced to giant black hole at galactic centre

• kenOfYugen 11y ago
  The Nature article: http://www.nature.com/nature/journal/vaop/ncurrent/full/nature17147.html http://www.nature.com/nature/journal/vaop/ncurrent/full/natu...
  • danieltillett 11y ago
    Any reason you didn't link to this?
    • kenOfYugen 11y ago
      Because the link I posted provides some less formal intro and commentary, no other reason.