"Bracewell probe" meaning in English

{
  "etymology_text": "Named after Australian astronomer Ronald N. Bracewell, who proposed them in 1960.",
  "forms": [
    {
      "form": "Bracewell probes",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Bracewell probe (plural Bracewell probes)",
      "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": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
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          "name": "Pages with entries",
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          "source": "w"
        },
        {
          "kind": "other",
          "langcode": "en",
          "name": "Interstellar travel",
          "orig": "en:Interstellar travel",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Spacecraft",
          "orig": "en:Spacecraft",
          "parents": [
            "Space travel",
            "Vehicles",
            "Astronautics",
            "Transport",
            "Machines",
            "Applied sciences",
            "Space",
            "All topics",
            "Technology",
            "Sciences",
            "Nature",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A hypothetical machine sent on interstellar voyages to communicate with an alien civilization."
      ],
      "id": "en-Bracewell_probe-en-noun-cBqiatyR",
      "links": [
        [
          "interstellar",
          "interstellar"
        ],
        [
          "alien",
          "alien"
        ],
        [
          "civilization",
          "civilization"
        ]
      ],
      "related": [
        {
          "word": "von Neumann probe"
        }
      ],
      "wikipedia": [
        "Bracewell probe",
        "Ronald N. Bracewell"
      ]
    }
  ],
  "word": "Bracewell probe"
}

{
  "etymology_text": "Named after Australian astronomer Ronald N. Bracewell, who proposed them in 1960.",
  "forms": [
    {
      "form": "Bracewell probes",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Bracewell probe (plural Bracewell probes)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "von Neumann probe"
    }
  ],
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English eponyms",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "Pages with 1 entry",
        "Pages with entries",
        "en:Interstellar travel",
        "en:Spacecraft"
      ],
      "glosses": [
        "A hypothetical machine sent on interstellar voyages to communicate with an alien civilization."
      ],
      "links": [
        [
          "interstellar",
          "interstellar"
        ],
        [
          "alien",
          "alien"
        ],
        [
          "civilization",
          "civilization"
        ]
      ],
      "wikipedia": [
        "Bracewell probe",
        "Ronald N. Bracewell"
      ]
    }
  ],
  "word": "Bracewell probe"
}