{
  "id": 9678777,
  "title": "China tested a handheld submarine detector. It tracked a subway train underground",
  "url": "https://urgent.news/2026/09/25/china-tested-a-handheld-submarine-detector-it-tracked-a-subway-train-9678777",
  "topic": "science",
  "section": "Science",
  "published": "2026-09-25T02:00:18.000Z",
  "source": {
    "name": "South China Morning Post",
    "slug": "south-china-morning-post",
    "url": "https://www.scmp.com/news/china/science/article/3367965/china-tested-handheld-submarine-detector-it-tracked-subway-train-underground"
  },
  "original_language": "en",
  "account": null,
  "summary": "Chinese researchers have showed a handheld quantum magnetometer built for hunting submarines in a striking real-world test: it tracked a subway train rumbling beneath a city street. The device, developed by Peng Xinhua and colleagues at the University of Science and Technology of China, is described in a study published on September 14 in Acta Physica Sinica. Though it is scarcely larger than a…",
  "key_points": [],
  "editors_take": null,
  "illustration": null,
  "coverage": {
    "outlets": 2,
    "also_reported_by": [
      {
        "outlet": "Reuters Business via SCMP",
        "title": "China tested a handheld submarine detector. It tracked a subway train underground",
        "url": "https://urgent.news/2026/09/25/china-tested-a-handheld-submarine-detector-it-tracked-a-subway-train",
        "published": "2026-09-25T02:00:18.000Z"
      }
    ]
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}