"Fermi bubble" meaning in English

{
  "etymology_text": "First observed by the Fermi Gamma-ray Space Telescope.",
  "forms": [
    {
      "form": "Fermi bubbles",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Fermi bubble (plural Fermi bubbles)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English entries with language name categories using raw markup",
          "parents": [
            "Entries with language name categories using raw markup",
            "Entry maintenance"
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          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms with non-redundant non-automated sortkeys",
          "parents": [
            "Terms with non-redundant non-automated sortkeys",
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          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Astronomy",
          "orig": "en:Astronomy",
          "parents": [
            "Sciences",
            "Space",
            "All topics",
            "Nature",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A region of the galaxy, rich in gamma rays, thought to be caused by the central supermassive black hole."
      ],
      "id": "en-Fermi_bubble-en-noun-0inyZ0l6",
      "links": [
        [
          "astronomy",
          "astronomy"
        ],
        [
          "galaxy",
          "galaxy"
        ],
        [
          "gamma ray",
          "gamma ray"
        ],
        [
          "supermassive black hole",
          "supermassive black hole"
        ]
      ],
      "raw_glosses": [
        "(astronomy) A region of the galaxy, rich in gamma rays, thought to be caused by the central supermassive black hole."
      ],
      "topics": [
        "astronomy",
        "natural-sciences"
      ],
      "wikipedia": [
        "Fermi Gamma-ray Space Telescope"
      ]
    }
  ],
  "word": "Fermi bubble"
}

{
  "etymology_text": "First observed by the Fermi Gamma-ray Space Telescope.",
  "forms": [
    {
      "form": "Fermi bubbles",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Fermi bubble (plural Fermi bubbles)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English entries with language name categories using raw markup",
        "English eponyms",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with non-redundant non-automated sortkeys",
        "en:Astronomy"
      ],
      "glosses": [
        "A region of the galaxy, rich in gamma rays, thought to be caused by the central supermassive black hole."
      ],
      "links": [
        [
          "astronomy",
          "astronomy"
        ],
        [
          "galaxy",
          "galaxy"
        ],
        [
          "gamma ray",
          "gamma ray"
        ],
        [
          "supermassive black hole",
          "supermassive black hole"
        ]
      ],
      "raw_glosses": [
        "(astronomy) A region of the galaxy, rich in gamma rays, thought to be caused by the central supermassive black hole."
      ],
      "topics": [
        "astronomy",
        "natural-sciences"
      ],
      "wikipedia": [
        "Fermi Gamma-ray Space Telescope"
      ]
    }
  ],
  "word": "Fermi bubble"
}