"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": "English entries with language name categories using raw markup",
          "parents": [
            "Entries with language name categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms with non-redundant non-automated sortkeys",
          "parents": [
            "Terms with non-redundant non-automated sortkeys",
            "Entry maintenance"
          ],
          "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 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: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"
}