"Martian spherule" meaning in English

{
  "forms": [
    {
      "form": "Martian spherules",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Martian spherule (plural Martian spherules)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
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        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
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          "source": "w"
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          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Mars (planet)",
          "orig": "en:Mars (planet)",
          "parents": [
            "Planets of the Solar System",
            "Planets",
            "Celestial bodies",
            "Space",
            "Nature",
            "All topics",
            "Fundamental"
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          "source": "w"
        }
      ],
      "glosses": [
        "One of a group of iron oxide concretions found in the Meridiani Planum on Mars."
      ],
      "id": "en-Martian_spherule-en-noun--1wK7VDw",
      "links": [
        [
          "iron oxide",
          "iron oxide"
        ],
        [
          "concretion",
          "concretion"
        ],
        [
          "Mars",
          "Mars"
        ]
      ],
      "related": [
        {
          "word": "Moqui marble"
        }
      ],
      "synonyms": [
        {
          "word": "Martian blueberry"
        }
      ],
      "wikipedia": [
        "Martian spherule"
      ]
    }
  ],
  "word": "Martian spherule"
}

{
  "forms": [
    {
      "form": "Martian spherules",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Martian spherule (plural Martian spherules)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "Moqui marble"
    }
  ],
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        "en:Mars (planet)"
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      "glosses": [
        "One of a group of iron oxide concretions found in the Meridiani Planum on Mars."
      ],
      "links": [
        [
          "iron oxide",
          "iron oxide"
        ],
        [
          "concretion",
          "concretion"
        ],
        [
          "Mars",
          "Mars"
        ]
      ],
      "wikipedia": [
        "Martian spherule"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "Martian blueberry"
    }
  ],
  "word": "Martian spherule"
}